)]}' { "log": [ { "commit": "4893cf612a68d26cdbe0e16ba9c42772136e2340", "tree": "b057aa6eda3d88d158efcb9fc5389c928d1387be", "parents": [ "f15977883584e7b52832518c3fef115957d3203b" ], "author": { "name": "Jean Delvare", "email": "jdelvare@suse.de", "time": "Tue Oct 02 16:42:36 2012 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Sat Oct 13 05:38:37 2012 +0900" }, "message": "kbuild: Fix gcc -x syntax\n\ncommit b1e0d8b70fa31821ebca3965f2ef8619d7c5e316 upstream.\n\nThe correct syntax for gcc -x is \"gcc -x assembler\", not\n\"gcc -xassembler\". Even though the latter happens to work, the former\nis what is documented in the manual page and thus what gcc wrappers\nsuch as icecream do expect.\n\nThis isn\u0027t a cosmetic change. The missing space prevents icecream from\nrecognizing compilation tasks it can\u0027t handle, leading to silent kernel\nmiscompilations.\n\nBesides me, credits go to Michael Matz and Dirk Mueller for\ninvestigating the miscompilation issue and tracking it down to this\nincorrect -x parameter syntax.\n\nSigned-off-by: Jean Delvare \u003cjdelvare@suse.de\u003e\nAcked-by: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Bernhard Walle \u003cbernhard@bwalle.de\u003e\nCc: Michal Marek \u003cmmarek@suse.cz\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Michal Marek \u003cmmarek@suse.cz\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n\n" }, { "commit": "20d23aaa31da295378abff4272716e3dfc72baf0", "tree": "e7d5a8be4425eb97ac1a396c7b0f08079259d861", "parents": [ "09c0211c0bb0e40231e6ee9a35041d467ed72f16" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Tue May 08 09:29:16 2012 -0600" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed May 09 14:14:41 2012 -0300" }, "message": "perf stat: handle ENXIO error for perf_event_open\n\nperf stat on PPC currently fails to run:\n\n$ perf stat -- sleep 1\n Error: open_counter returned with 6 (No such device or address). /bin/dmesg may provide additional information.\n\n Fatal: Not all events could be opened.\n\nThe problem is that until 2.6.37 (behavior changed with commit b0a873e)\nperf on PPC returns ENXIO when hw_perf_event_init() fails. With this\npatch we get the expected behavior:\n\n$ perf stat -v -- sleep 1\ncycles event is not supported by the kernel.\nstalled-cycles-frontend event is not supported by the kernel.\nstalled-cycles-backend event is not supported by the kernel.\ninstructions event is not supported by the kernel.\nbranches event is not supported by the kernel.\nbranch-misses event is not supported by the kernel.\n\n...\n\nSigned-off-by: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLink: http://lkml.kernel.org/r/1336490956-57145-1-git-send-email-dsahern@gmail.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "09c0211c0bb0e40231e6ee9a35041d467ed72f16", "tree": "2fae8feeb79de3708f7f6031b4890b87a19604c4", "parents": [ "4c8570362652ec427e8282d9c528bcc6cbe1075c" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Fri May 04 11:32:54 2012 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon May 07 10:03:01 2012 +0200" }, "message": "perf: Turn off compiler warnings for flex and bison generated files\n\nWe don\u0027t know what types of warnings different versions of flex\nand bison combined with different versions of gcc is going to\ngenerate, so just punt and don\u0027t warn about anything.\n\nThis fixes the build of perf for me on an openSUSE 12.1 system.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nLink: http://lkml.kernel.org/r/20120504183254.GA11154@kroah.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "5622c07b4741e0afd7607bce6e850b76eeb23210", "tree": "bbd2aa4459baf10ef88aef17fc5b55abaf451ce0", "parents": [ "afda0f94483f46a4caddb529b8f95e0aaf015de6" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Fri Apr 27 14:45:38 2012 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue May 01 14:20:00 2012 -0300" }, "message": "perf stat: Fix case where guest/host monitoring is not supported by kernel\n\nBy default, perf stat sets exclude_guest \u003d 1. But when you run perf on a\nkernel which does not support host/guest filtering, then you get an\nerror saying the event in unsupported. This comes from the fact that\nwhen the perf_event_attr struct passed by the user is larger than the\none known to the kernel there is safety check which ensures that all\nunknown bits are zero. But here, exclude_guest is 1 (part of the unknown\nbits) and thus the perf_event_open() syscall return EINVAL.\n\nTo my surprise, running perf record on the same kernel did not exhibit\nthe problem. The reason is that perf record handles the problem by\ncatching the error and retrying with guest/host excludes set to zero.\nFor some reason, this was not done with perf stat. This patch fixes this\nproblem.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Gleb Natapov \u003cgleb@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Joerg Roedel \u003cjoro@8bytes.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nLink: http://lkml.kernel.org/r/20120427124538.GA7230@quad\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "afda0f94483f46a4caddb529b8f95e0aaf015de6", "tree": "20fe5effab92345eb26fe5a94247e8b1d10498bb", "parents": [ "33ff581eddf744ea91a50d46c2f0961b375a9595" ], "author": { "name": "Namhyung Kim", "email": "namhyung@gmail.com", "time": "Tue May 01 23:19:36 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue May 01 14:13:00 2012 -0300" }, "message": "perf build-id: Fix filename size calculation\n\nThe filename is a pointer variable so the sizeof(filename) will return\nlength of a pointer. Fix it by using \u0027size\u0027.\n\nSigned-off-by: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1335881976-3282-1-git-send-email-namhyung@gmail.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "33ff581eddf744ea91a50d46c2f0961b375a9595", "tree": "b286b45ecba08ad147353d7f761ff9b0f12ea90c", "parents": [ "e7c72d888dac2c81003401d663bd8abd68e7c5cd" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Wed Apr 18 15:46:58 2012 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Apr 20 13:34:49 2012 -0300" }, "message": "perf symbols: Read plt symbols from proper symtab_type binary\n\nWhen loading symbols from DSO we check multiple paths of DSO binary\nuntil we succeed to load symbols (\u0027.symtab\u0027 section). Once symbols are\nread we try to load also plt symbols.\n\nDuring the reading of plt symbols, the dso file is reopened from\nlocation given by dso-\u003elong_name. This could be wrong in case we want\nprocess buildid binaries.\n\nThe change is to make the plt symbols being read from the DSO path, that\nnormal symbols were read from.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1334756818-6631-1-git-send-email-jolsa@redhat.com\n[ committer note: moved dso to be the first parameter of that function ]\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "e7c72d888dac2c81003401d663bd8abd68e7c5cd", "tree": "867f8b13c22c1da09c434a438de3def636c84849", "parents": [ "6ffd7bdbf8516d691974d21098278af65d4817a5" ], "author": { "name": "Gleb Natapov", "email": "gleb@redhat.com", "time": "Tue Apr 17 14:13:45 2012 +0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Apr 17 11:20:23 2012 -0300" }, "message": "perf tools: Add \u0027G\u0027 and \u0027H\u0027 modifiers to event parsing\n\nThey were dropped during conversion of event parser. Add test case to\nmake sure this will not happen again.\n\nSigned-off-by: Gleb Natapov \u003cgleb@redhat.com\u003e\nAcked-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLink: http://lkml.kernel.org/r/20120417111345.GK11918@redhat.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "6ffd7bdbf8516d691974d21098278af65d4817a5", "tree": "795aeb0fd9a4a1f0cc28e1086748bc125330738b", "parents": [ "9e755756e4a22784abfb001688357745ea8ca97c" ], "author": { "name": "Otavio Salvador", "email": "otavio@ossystems.com.br", "time": "Wed Apr 11 09:44:30 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Apr 16 16:10:22 2012 -0300" }, "message": "perf tools: Drop CROSS_COMPILE from flex and bison calls\n\nThe flex and bison tools generate arch-independent C code so its\nbinaries are not prefixed with the target-arch prefix. With this patch\nthe Linux 3.4-rc2 can be successfuly build on OE-Core.\n\nSigned-off-by: Otavio Salvador \u003cotavio@ossystems.com.br\u003e\nLink: http://lkml.kernel.org/r/1334148270-13139-1-git-send-email-otavio@ossystems.com.br\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "9e755756e4a22784abfb001688357745ea8ca97c", "tree": "f1b23c22aae655695872fb7f325018b2a566876a", "parents": [ "7ea6411f4ceb62e5e53170d59d10996dca20c599" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Sun Apr 15 20:54:15 2012 -0600" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Apr 16 11:18:22 2012 -0300" }, "message": "perf report: Fix crash showing warning related to kernel maps\n\nWhile testing https://lkml.org/lkml/2012/4/10/123 I hit this crash:\n\n(gdb) bt\n 0 0x000000000042000f in __cmd_report (rep\u003d0x7fff80cec580) at builtin-report.c:380\n 1 cmd_report (argc\u003d0, argv\u003d\u003coptimized out\u003e, prefix\u003d\u003coptimized out\u003e) at builtin-report.c:759\n 2 0x0000000000414513 in run_builtin (p\u003d0x7724a8, argc\u003d3, argv\u003d0x7fff80ceca70) at perf.c:273\n 3 0x0000000000413d41 in handle_internal_command (argv\u003d0x7fff80ceca70, argc\u003d3) at perf.c:345\n 4 run_argv (argv\u003d0x7fff80cec880, argcp\u003d0x7fff80cec88c) at perf.c:389\n 5 main (argc\u003d3, argv\u003d0x7fff80ceca70) at perf.c:487\n\nkernel_map can be NULL, so need to handle it while dumping a warning\nto user.\n\nv2:\n- fixed RB_EMPTY_ROOT check -- desc takes the altnerative output when RB_EMPTY_ROOT is false.\n\nSigned-off-by: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nLink: http://lkml.kernel.org/r/1334544855-55021-1-git-send-email-dsahern@gmail.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "e3b6193378e8549d04849eda496129f94406ed36", "tree": "ed3651e6a3cc1c0b64207c7298761f50ee0958df", "parents": [ "77394ad6e465ee3cc3d3cf448c8500c57ced60bf" ], "author": { "name": "Chanho Park", "email": "chanho61.park@samsung.com", "time": "Mon Apr 02 15:28:29 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Apr 14 13:52:15 2012 -0300" }, "message": "perf archive: Correct cutting of symbolic link\n\nIf a \u0027$PERF_BUILDID_DIR\u0027(typically $HOME/.debug) is a symbolic link\ndirectory, cutting of the path will fail.\n\nHere is an example where a buildid directory is a symbolic link.\n\n/ # ls -al /root\nlrwxrwxrwx 1 root root 13 Mar 26 2012 /root -\u003e opt/home/root\n/ # cd ~\n/opt/home/root # perf record -a -g sleep 1\n[ perf record: Woken up 1 times to write data ]\n[ perf record: Captured and wrote 0.322 MB perf.data (~14057 samples) ]\n/opt/home/root # perf archive\ntar: Removing leading `/\u0027 from member names\nNow please run:\n\n$ tar xvf perf.data.tar.bz2 -C ~/.debug\n\nwherever you need to run \u0027perf report\u0027 on.\n/opt/home/root # mkdir temp\n/opt/home/root # tar xf perf.data.tar.bz2 -C ./temp\n/opt/home/root # find ./temp -name \"*kernel*\"\n./temp/opt/home/root/.debug/[kernel.kallsyms]\n\n-\u003e If successfully cut off the path, [kernel.kallsyms] is located\nin top of the archived file.\n\nThis patch enables to cut correctly even if the buildid directory\nis a symbolic link.\n\nSigned-off-by: Chanho Park \u003cchanho61.park@samsung.com\u003e\nSigned-off-by: Kyungmin Park \u003ckyungmin.park@samsung.com\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Kyungmin Park \u003ckyungmin.park@samsung.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1333348109-12598-1-git-send-email-chanho61.park@samsung.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "77394ad6e465ee3cc3d3cf448c8500c57ced60bf", "tree": "db76a74a2c83eb5a3a9aac14b71180bf6e48cc39", "parents": [ "2a5204fed0f313f9b55a7b4d5f48ca484446d095" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Mon Apr 09 14:11:14 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Apr 14 13:50:39 2012 -0300" }, "message": "perf tools: Ignore auto-generated bison/flex files\n\nThe commit 65f3e56e0c81 (\"perf tools: Remove auto-generated bison/flex\nfiles\") removed those files from git, so they\u0027ll be listed on untracked\nfiles after building perf. Fix it.\n\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1333948274-20043-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "2a5204fed0f313f9b55a7b4d5f48ca484446d095", "tree": "c835bd525022202bd2f2ac5875cb765c0381bacf", "parents": [ "f755397211745e26a4cc693a195982de6c454edd" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Wed Apr 11 12:39:51 2012 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Apr 14 13:49:43 2012 -0300" }, "message": "perf tools: Fix parsers\u0027 rules to dependencies\n\nCurrently the parsers objects (bison/flex related) are each time perf\nis built. No matter the generated files are already in place, the\nparser generation is executed every time.\n\nChanging the rules to have proper flex/bison objects generation\ndependencies.\n\nThe parsers code is not rebuilt until the flex/bison source files\nare touched. Also when flex/bison source is changed, only dependent\nobjects are rebuilt.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1334140791-3024-1-git-send-email-jolsa@redhat.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "f755397211745e26a4cc693a195982de6c454edd", "tree": "588cc2191b2fc8dcf5c82e10152627aa0370ed7b", "parents": [ "6782206b5dfece4c51f587b3ca1540a4027f87dd" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Tue Apr 10 12:35:13 2012 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Apr 12 15:48:15 2012 -0300" }, "message": "perf tools: fix NO_GTK2 Makefile config error\n\nIn case the user specified NO_GTK2 on the make cmdline, compilation\nwould fail with undefined symbol because the Makefile would not set the\ncorrect cpp variable: NO_GTK2 vs. NO_GTK2_SUPPORT.\n\nThis patch renames the variable to the correct name.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Pekka Enberg \u003cpenberg@kernel.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLink: http://lkml.kernel.org/r/20120410103513.GA9229@quad\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "6782206b5dfece4c51f587b3ca1540a4027f87dd", "tree": "68dd9e7c0166308f19dcc2f7f21440878fc7728b", "parents": [ "7fb0a5ee8889488f7568ffddffeb66ddeb50917e" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Apr 12 14:21:01 2012 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Apr 12 12:14:50 2012 -0300" }, "message": "perf session: Skip event correctly for unknown id/machine\n\nIn case the perf_session__process_event function fails, we estimate the\nnext event offset.\n\nThis is not necessary for sample event failing on unknown ID or machine.\nIn such case we know proper size of the event, so we dont need to guess.\nAlso failure statistics are updated correctly so we don\u0027t miss any\ninformation.\n\nForcing perf_session__process_event to return 0 in case of unknown ID or\nmachine.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1334233262-5679-3-git-send-email-jolsa@redhat.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "7fb0a5ee8889488f7568ffddffeb66ddeb50917e", "tree": "9116fdaba568f251c328f8a2cbe5ad828c0e71bc", "parents": [ "31d68e7b66f168e623902e194af1e52b8cf75d71" ], "author": { "name": "Nikunj A. Dadhania", "email": "nikunj@linux.vnet.ibm.com", "time": "Mon Apr 09 13:52:23 2012 +0530" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Apr 11 11:45:12 2012 -0300" }, "message": "perf kvm: Finding struct machine fails for PERF_RECORD_MMAP\n\nRunning \u0027perf kvm --host --guest --guestmount /tmp/guestmount record -a -g -- sleep 2\u0027\n\nWas resulting in a segfault. For event type PERF_RECORD_MMAP,\nevent-\u003eip.pid is being used in perf_session__find_machine_for_cpumode,\nwhich is not correct.\n\nThe event-\u003eip.pid field happens to be 0 in this case and results in\nreturning a NULL machine object. Finally, access to self-\u003epid in\nmachine__mmap_name, results in a segfault later.\n\nFor PERF_RECORD_MMAP type, pass event-\u003emmap.pid.\n\nSigned-off-by: Nikunj A. Dadhania \u003cnikunj@linux.vnet.ibm.com\u003e\nReviewed-by: David Ahern \u003cdsahern@gmail.com\u003e\nTested-by: David Ahern \u003cdsahern@gmail.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Nikunj A. Dadhania \u003cnikunj@linux.vnet.ibm.com\u003e\nLink: http://lkml.kernel.org/r/20120409081835.10576.22018.stgit@abhimanyu.in.ibm.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "31d68e7b66f168e623902e194af1e52b8cf75d71", "tree": "2a9f2925549d1995ebb316a52c82a53ac640556e", "parents": [ "8493fe1daf15324eb13a4cc2f94e258716daa568" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Mar 27 12:55:57 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Apr 05 19:51:14 2012 -0300" }, "message": "perf annotate: Validate addr in symbol__inc_addr_samples\n\nThis routine was checking only if the provided address was after\nsym-\u003eend, not if it was before sym-\u003estart.\n\nFix that by checking for both and return in both cases -ERANGE, so that\ntools can communicate this to the user properly, or if they chose so, to\nabort.\n\nThis problem was reported previously but the fixes involved either doing\nwhat was being done for the \u003e end case, i.e. silently drop the sample,\nreturning 0, or aborting at this function, which is in a lib (or better,\nis slated to be at some point) and shouldn\u0027t abort.\n\nThe \u0027report\u0027 tool already checks this value and uses pr_debug to warn\nthe user.\n\nThis patch makes the \u0027top\u0027 tool check it too and warn once per map where\nsuch range problem takes place.\n\nReported-by: David Miller \u003cdavem@davemloft.net\u003e\nReported-by: Sorin Dumitru \u003cdumitru.sorin87@gmail.com\u003e\nReported-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLink: http://lkml.kernel.org/n/tip-lw8gs7p9i9nhldilo82tzpne@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "8493fe1daf15324eb13a4cc2f94e258716daa568", "tree": "31cdd2296154a6288b643cda10af61b78235f4a1", "parents": [ "63fa471dd49e9c9ce029d910d1024330d9b1b145" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Wed Apr 04 22:21:31 2012 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Apr 05 18:58:45 2012 -0300" }, "message": "perf hists browser: Fix NULL deref in hists browsing code\n\nIf there\u0027s an event with no samples in data file, the perf report\ncommand can segfault after entering the event details menu.\n\nFollowing steps reproduce the issue:\n\n # ./perf record -e syscalls:sys_enter_kexec_load,syscalls:sys_enter_mmap ls\n # ./perf report\n # enter \u00270 syscalls:sys_enter_kexec_load\u0027 menu\n # pres ENTER twice\n\nAbove steps are valid assuming ls wont run kexec.. ;)\n\nThe check for sellection to be NULL is missing. The fix makes sure it\u0027s\nbeing check. Above steps now endup with menu being displayed allowing\n\u0027Exit\u0027 as the only option.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1333570898-10505-2-git-send-email-jolsa@redhat.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "63fa471dd49e9c9ce029d910d1024330d9b1b145", "tree": "b595c59b494f145e619b22c28f9d1629fb724092", "parents": [ "8b84a568117fde9b77575f2060274eddab424c32" ], "author": { "name": "David Miller", "email": "davem@davemloft.net", "time": "Tue Mar 27 03:14:18 2012 -0400" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Apr 05 18:53:47 2012 -0300" }, "message": "perf hists: Catch and handle out-of-date hist entry maps.\n\nWhen a process exec()\u0027s, all the maps are retired, but we keep the hist\nentries around which hold references to those outdated maps.\n\nIf the same library gets mapped in for which we have hist entries, a new\nmap will be created. But when we take a perf entry hit within that map,\nwe\u0027ll find the existing hist entry with the older map.\n\nThis causes symbol translations to be done incorrectly. For example,\nthe perf entry processing will lookup the correct uptodate map entry and\nuse that to calculate the symbol and DSO relative address. But later\nwhen we update the histogram we\u0027ll translate the address using the\noutdated map file instead leading to conditions such as out-of-range\noffsets in symbol__inc_addr_samples().\n\nTherefore, update the map of the hist_entry dynamically at lookup/\ncreation time.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: stable@kernel.org\nLink: http://lkml.kernel.org/r/20120327.031418.1220315351537060808.davem@davemloft.net\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "8b84a568117fde9b77575f2060274eddab424c32", "tree": "dadc32f7df64619334f252c9c5206b82b99a73a6", "parents": [ "4bea8b5cf8c6e875fa43e617cd52858a07ae8ea8" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Apr 05 16:15:59 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Apr 05 18:49:18 2012 -0300" }, "message": "perf annotate: Fix hist decay\n\nWe were only decaying the entries for the offsets that were associated\nwith an objdump line.\n\nThat way, when we accrued the whole instruction addr range, more than\n100% was appearing in some cases in the live annotation TUI.\n\nFix it by not traversing the source code line at all, just iterate thru\nthe complete addr range decaying each one.\n\nReported-by: Mike Galbraith \u003cmgalbraith@suse.de\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-hcae5oxa22syjrnalsxz7s6n@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "4bea8b5cf8c6e875fa43e617cd52858a07ae8ea8", "tree": "eb56deadc00fac0801cd2b61dfed15cd8b6b173d", "parents": [ "7b78f13603c6fcb64e020a0bbe31a651ea2b657b" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Apr 02 11:16:24 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Apr 05 18:48:01 2012 -0300" }, "message": "perf top: Add intel_idle to the skip list\n\nTODO: Accrue the cycles in the skip_list to an idle total, and show this\non the \u0027top\u0027 UI, as suggested by Steven.\n\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/n/tip-9nfecmgghgl5747rjxqpc28f@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "7b78f13603c6fcb64e020a0bbe31a651ea2b657b", "tree": "937cf80df31a6fe5a8f233bf30242447e3e57a56", "parents": [ "7b8e6da46b921d30ac1553cac56d8fb74f0b431d" ], "author": { "name": "Markus Trippelsdorf", "email": "markus@trippelsdorf.de", "time": "Wed Apr 04 10:45:27 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Apr 04 11:59:00 2012 +0200" }, "message": "perf tools: Fix getrusage() related build failure on glibc trunk\n\nOn a system running glibc trunk perf doesn\u0027t build:\n\n CC builtin-sched.o\nbuiltin-sched.c: In function ‘get_cpu_usage_nsec_parent’: builtin-sched.c:399:16: error: storage size of ‘ru’ isn’t known builtin-sched.c:403:2: error: implicit declaration of function ‘getrusage’ [-Werror\u003dimplicit-function-declaration]\n [...]\n\nFix it by including sys/resource.h.\n\nSigned-off-by: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120404084527.GA294@x4\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "8ebfdf2babcda5a3b06cc67523bca1f9aed46009", "tree": "160fe42903b8fdd399347ae9e7a7d72c331570f8", "parents": [ "12b5da349a8b94c9dbc3430a6bc42eabd9eaf50b", "65f3e56e0c81d1f581c4bdef7646ae5a8d51f494" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Sat Mar 31 09:27:41 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Sat Mar 31 09:27:41 2012 +0200" }, "message": "Merge branch \u0027perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent\n" }, { "commit": "65f3e56e0c81d1f581c4bdef7646ae5a8d51f494", "tree": "55e7b97793659661a8341e2ff031a41a661249e1", "parents": [ "64c17be4ffb8d6971051aec77ca1de4cfadb166d" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Thu Mar 29 13:08:38 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 30 12:43:17 2012 -0300" }, "message": "perf tools: Remove auto-generated bison/flex files\n\nThese should not be in the Git history - they are auto-generated.\n\nExtend the Makefile rules of the parser files to include the generation\nrun.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120327183335.GA27621@gmail.com\n[ committer note: Fixed up O\u003d handling ]\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "64c17be4ffb8d6971051aec77ca1de4cfadb166d", "tree": "5ab8ca0b28f6d780c5a3962d395ccb6413201645", "parents": [ "cc96aa7a7f2e9a1a3cf8be3720f185f2d13fe34b" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Mar 28 12:49:35 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 29 17:13:45 2012 -0300" }, "message": "perf annotate: Fix off by one symbol hist size allocation and hit accounting\n\nWe were not noticing it because symbol__inc_addr_samples was erroneously\ndropping samples that hit the last byte in a function.\n\nWorking on a fix for a problem reported by David Miller, Stephane\nEranian and Sorin Dumitru, where addresses \u003c sym-\u003estart were causing\nproblems, I noticed this other problem.\n\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Sorin Dumitru \u003cdumitru.sorin87@gmail.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-pqjaq4cr1xs2xen73pjhbav4@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "cc96aa7a7f2e9a1a3cf8be3720f185f2d13fe34b", "tree": "9bea39605eb31ecc8794c6f258b4ce55192ed6ef", "parents": [ "f40a06339fe6f4809b5851a74aae2c0dc4386e1b" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Mar 29 19:21:57 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 29 11:05:50 2012 -0300" }, "message": "perf tools: Add missing ref-cycles event back to event parser\n\nThe commit 89812fc81f8d (\"perf tools: Add parser generator for events\nparsing\") changed event parsing engine but missed the ref-cycles event.\nAdd it.\n\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nAcked-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1333016517-10591-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "f40a06339fe6f4809b5851a74aae2c0dc4386e1b", "tree": "54ff3daf96b62af079e77687e3b5e4ffcebb5824", "parents": [ "ba28c59bc9ed8fb7b9a753cd88ee54a2c4f6265b" ], "author": { "name": "David Miller", "email": "davem@davemloft.net", "time": "Sun Mar 25 16:28:12 2012 -0400" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Mar 28 12:06:24 2012 -0300" }, "message": "perf annotate: addr2line wants addresses in same format as objdump\n\nTherefore, in symbol__get_source_line(), use map__rip_2objdump\ninstead of calling map-\u003eunmap_ip() unconditionally.\n\nLink: http://lkml.kernel.org/r/20120325.162812.59519424882536855.davem@davemloft.net\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "ba28c59bc9ed8fb7b9a753cd88ee54a2c4f6265b", "tree": "30f2e5d133173779284dfe4e11ecdfd22f6f20fb", "parents": [ "1e2dd2f73afdc810cc7400b7036232fbdc416eeb" ], "author": { "name": "Prashanth Nageshappa", "email": "prashanth@linux.vnet.ibm.com", "time": "Mon Mar 26 15:36:49 2012 +0530" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Mar 28 11:56:49 2012 -0300" }, "message": "perf probe: Finder fails to resolve function name to address\n\nIf DIE entries corresponding to declarations appear before definition\nentry, probe finder returns error instead of continuing to look further\nfor a definition entry.\n\nThis patch ensures we reach to the DIE entry corresponding to the\ndefinition and get the function address.\n\nV2: A simpler solution based on Masami\u0027s suggestion.\n\nSigned-off-by: Prashanth Nageshappa \u003cprashanth@linux.vnet.ibm.com\u003e\nAcked-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/r/4F703FB9.9020407@linux.vnet.ibm.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "1e2dd2f73afdc810cc7400b7036232fbdc416eeb", "tree": "3f525b57114571616b3fda2fe80d9a2b4709849d", "parents": [ "3738d40ec51317eb8390218a33513ca35656f107" ], "author": { "name": "David Miller", "email": "davem@davemloft.net", "time": "Sun Mar 25 16:28:22 2012 -0400" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Mar 27 11:00:58 2012 -0300" }, "message": "perf symbols: Handle NULL dso in dso__name_len\n\nWe should use \"[unknown]\" in this case, in concert with the code in\n_hist_entry__dso_snprintf().\n\nOtherwise we\u0027ll crash when recomputing the histogram column lengths in\nhists__calc_col_len().\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\nLink: http://lkml.kernel.org/r/20120325.162822.2267799792062571623.davem@davemloft.net\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "3738d40ec51317eb8390218a33513ca35656f107", "tree": "9aa41c956bd16278218813bd5f7adaf234de2a62", "parents": [ "fa30c964c0ac31a705a4f86072267a42343c4158" ], "author": { "name": "David Miller", "email": "davem@davemloft.net", "time": "Tue Mar 27 00:03:01 2012 -0400" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Mar 27 10:57:48 2012 -0300" }, "message": "perf symbols: Do not include libgen.h\n\nThat causes us to end up using the XPG version of basename which can\nmodify it\u0027s argument.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\nLink: http://lkml.kernel.org/r/20120327.000301.1122788061724345175.davem@davemloft.net\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "fa30c964c0ac31a705a4f86072267a42343c4158", "tree": "74d5b88c4821753e7cdfc501c9044f65d45294f6", "parents": [ "6d4818c5245fe00bee2c3bfb45edde178f302703" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Sat Mar 17 23:23:18 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 26 15:36:03 2012 -0300" }, "message": "perf tools: Fix bug in raw sample parsing\n\nIn perf_event__parse_sample(), the array variable was not incremented\nby the amount of data used by the raw_data.\n\nThat was okay until we added PERF_SAMPLE_BRANCH_STACK which depends on\nthe array variable pointing to the beginning of the branch stack data.\n\nBut that was not the case if branch stack was combined with raw mode\nsampling. That led to bogus branch stack addresses and count.\n\nThe bug would show up with:\n$ perf record -R -b foo\n\nThis patch fixes the problem by correctly moving the array pointer\nforward for RAW samples.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLink: http://lkml.kernel.org/r/20120317222317.GA8803@quad\n[ committer note: Fix also later submitted by Jiri Olsa ]\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "6d4818c5245fe00bee2c3bfb45edde178f302703", "tree": "efceca0975d71d413f0dc9c990afb1893b707934", "parents": [ "b01c3a0010aabadf745f3e7fdb9cab682e0a28a2" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Mar 23 19:06:50 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 26 15:14:40 2012 -0300" }, "message": "perf tools: Fix display of first level of callchains\n\nThe callchain stdio mode display was written using a sorted by symbol\nreport. In this mode we have only one callchain root per hist so we\nforgot to handle cases where we have multiple callchain root, as in per\ndso sorting for example.\n\nFix this by handling these roots like any other branch, with the hist as\nthe parent.\n\nBefore:\n\n 1.97% libpthread-2.12.1.so\n |\n --- __libc_write\n create_worker\n bench_sched_messaging\n cmd_bench\n run_builtin\n main\n __libc_start_main\n\n |\n --- __libc_read\n create_worker\n bench_sched_messaging\n cmd_bench\n run_builtin\n main\n __libc_start_main\n\nAfter:\n\n 1.97% libpthread-2.12.1.so\n |\n |--36.97%-- __libc_write\n | create_worker\n | bench_sched_messaging\n | cmd_bench\n | run_builtin\n | main\n | __libc_start_main\n |\n |--31.47%-- __libc_read\n | create_worker\n | bench_sched_messaging\n | cmd_bench\n | run_builtin\n | main\n | __libc_start_main\n ...\n\nSingle roots keep their entry without percentage because they have\nthe same overhead than the hist they refer to. ie: 100% in fractal\nmode and the percentage of the hist in graph mode:\n\n 0.00% [k] reschedule_interrupt\n |\n --- default_idle\n amd_e400_idle\n cpu_idle\n start_secondary\n\nReported-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLink: http://lkml.kernel.org/r/1332526010-15400-1-git-send-email-fweisbec@gmail.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "2c86bf172e550b4bf089ac7f0de3f6370e243842", "tree": "e73ac2184418a62d703799905608803ab3e69b55", "parents": [ "7fd52392c56361a40f0c630a82b36b95ca31eac6" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Mon Mar 26 11:17:05 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon Mar 26 17:19:57 2012 +0200" }, "message": "perf tools: Switch module.h into export.h\n\nWhen merged to Linus\u0027s latest tree the perf build is broken\ndue to following change in lib/rbtree.c object:\n\n lib: reduce the use of module.h wherever possible\n commit 8bc3bcc93a2b4e47d5d410146f6546bca6171663\n Author: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\n Date: Wed Nov 16 21:29:17 2011 -0500\n\nWe need to move module.h header into export.h.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: acme@redhat.com\nCc: a.p.zijlstra@chello.nl\nCc: paulus@samba.org\nCc: cjashfor@linux.vnet.ibm.com\nCc: fweisbec@gmail.com\nLink: http://lkml.kernel.org/r/1332753425-3299-1-git-send-email-jolsa@redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "7fd52392c56361a40f0c630a82b36b95ca31eac6", "tree": "14091de24c6b28ea4cae9826f98aeedb7be091f5", "parents": [ "b01c3a0010aabadf745f3e7fdb9cab682e0a28a2", "e22057c8599373e5caef0bc42bdb95d2a361ab0d" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon Mar 26 17:18:44 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon Mar 26 17:19:03 2012 +0200" }, "message": "Merge branch \u0027linus\u0027 into perf/urgent\n\nMerge reason: we need to fix a non-trivial merge conflict.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "307b1cd7ecd7f3dc5ce3d3860957f034f0abe4df", "tree": "dfc8eb9a5dd7c4621a3a61058f25cabf82e327cd", "parents": [ "2df5e12900d847af9113980d015939dde0d1b1d4" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Fri Mar 23 15:02:03 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 23 16:58:33 2012 -0700" }, "message": "bitops: rename for_each_set_bit_cont() in favor of analogous list.h function\n\nThis renames for_each_set_bit_cont() to for_each_set_bit_from() because\nit is analogous to list_for_each_entry_from() in list.h rather than\nlist_for_each_entry_continue().\n\nThis doesn\u0027t remove for_each_set_bit_cont() for now.\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4bf9ce1b5ecffffeb8b9d7e925bac3e6b10109aa", "tree": "6405f45496261cbc233d8b4c1870bb05c647d966", "parents": [ "5d7be90ed5cfb5dd3c9ab726d7daa91b86b81747" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Mar 22 14:37:26 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 22 15:12:09 2012 -0300" }, "message": "perf diff: Fix to work with new hists design\n\nThe perf diff command is broken since:\n perf hists: Threaded addition and sorting of entries\n commit 1980c2ebd7020d82c024b8c4046849b38e78e7da\n\nSeveral places were broken:\n - hists data need to be collected into opened sessions instead\n of into events\n - session\u0027s hists data need to be initialized properly when the\n session is created\n - hist_entry__pcnt_snprintf: the percentage and displacement\n buffer preparation must not use \u0027ret\u0027 because it\u0027s used\n as a pointer to the final buffer\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120322133726.GB1601@m.brq.redhat.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "5d7be90ed5cfb5dd3c9ab726d7daa91b86b81747", "tree": "9b40166a00566af8bef1c388d51b8863a92cc6fe", "parents": [ "9fafd98f1bf14276f95b69f0186ad5675f1e1a18" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Tue Mar 20 19:15:40 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 22 15:11:38 2012 -0300" }, "message": "perf tools: Fix modifier to be applied on correct events\n\nThe event modifier needs to be applied only on the event definition it\nis attached to.\n\nThe current state is that in case of multiple events definition (in\nsingle \u0027-e\u0027 option, separated by \u0027,\u0027) all will get modifier of the last\none.\n\nFixing this by adding separated list for each event definition, so the\nmodifier is applied only to proper event(s). Added automated test to\ncatch this, plus some other modifier tests.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1332267341-26338-3-git-send-email-jolsa@redhat.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "9fafd98f1bf14276f95b69f0186ad5675f1e1a18", "tree": "16709d704a5b1b8adb0a30ebf03425e8d95af17d", "parents": [ "842f07f6127afa48cca6b2ce9021b985e8eb9068" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Tue Mar 20 19:15:39 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 22 15:11:18 2012 -0300" }, "message": "perf tools: Fix various casting issues for 32 bits\n\n- util/parse-events.c(parse_events_add_breakpoint)\n need to use unsigned long instead of u64, otherwise\n we get following gcc error on 32 bits:\n error: cast from pointer to integer of different size\n\n- util/header.c(print_event_desc)\n cannot retype to signed type, otherwise we get following\n gcc error on 32 bits:\n error: comparison between signed and unsigned integer expressions\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1332267341-26338-2-git-send-email-jolsa@redhat.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "842f07f6127afa48cca6b2ce9021b985e8eb9068", "tree": "f9354ae650cdc2f7ced7cf99e10063b94484fb18", "parents": [ "0d09eb7a9a2ca4d7ed32f7b440bea78c0622814a" ], "author": { "name": "Borislav Petkov", "email": "bp@amd64.org", "time": "Wed Mar 21 15:15:47 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 22 15:10:42 2012 -0300" }, "message": "perf tools: Simplify event_read_id exit path\n\nWe\u0027re freeing the token in any case so simplify the exit path by\nunifying it.\n\nNo functional change.\n\nSigned-off-by: Borislav Petkov \u003cbp@amd64.org\u003e\nLink: http://lkml.kernel.org/r/1332339347-21342-1-git-send-email-bp@amd64.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "0d09eb7a9a2ca4d7ed32f7b440bea78c0622814a", "tree": "177871323b183610017c65c68f0bde9af2f37f47", "parents": [ "9521d830b6341d1887dcfc2aebde23fbfa5f1473", "89c5bd08df5841326abbf167d136bcf14cf759ed" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 22 15:09:08 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 22 15:09:08 2012 -0300" }, "message": "Merge branch \u0027perf/urgent\u0027 into perf/core\n\nMerge Reason: to pick the fix:\n\n commit e7f01d1\n perf tools: Use scnprintf where applicable\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "9c2b957db1772ebf942ae7a9346b14eba6c8ca66", "tree": "0dbb83e57260ea7fc0dc421f214d5f1b26262005", "parents": [ "0bbfcaff9b2a69c71a95e6902253487ab30cb498", "bea95c152dee1791dd02cbc708afbb115bb00f9a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Mar 20 10:29:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Mar 20 10:29:15 2012 -0700" }, "message": "Merge branch \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf events changes for v3.4 from Ingo Molnar:\n\n - New \"hardware based branch profiling\" feature both on the kernel and\n the tooling side, on CPUs that support it. (modern x86 Intel CPUs\n with the \u0027LBR\u0027 hardware feature currently.)\n\n This new feature is basically a sophisticated \u0027magnifying glass\u0027 for\n branch execution - something that is pretty difficult to extract from\n regular, function histogram centric profiles.\n\n The simplest mode is activated via \u0027perf record -b\u0027, and the result\n looks like this in perf report:\n\n\t$ perf record -b any_call,u -e cycles:u branchy\n\n\t$ perf report -b --sort\u003dsymbol\n\t 52.34% [.] main [.] f1\n\t 24.04% [.] f1 [.] f3\n\t 23.60% [.] f1 [.] f2\n\t 0.01% [k] _IO_new_file_xsputn [k] _IO_file_overflow\n\t 0.01% [k] _IO_vfprintf_internal [k] _IO_new_file_xsputn\n\t 0.01% [k] _IO_vfprintf_internal [k] strchrnul\n\t 0.01% [k] __printf [k] _IO_vfprintf_internal\n\t 0.01% [k] main [k] __printf\n\n This output shows from/to branch columns and shows the highest\n percentage (from,to) jump combinations - i.e. the most likely taken\n branches in the system. \"branches\" can also include function calls\n and any other synchronous and asynchronous transitions of the\n instruction pointer that are not \u0027next instruction\u0027 - such as system\n calls, traps, interrupts, etc.\n\n This feature comes with (hopefully intuitive) flat ascii and TUI\n support in perf report.\n\n - Various \u0027perf annotate\u0027 visual improvements for us assembly junkies.\n It will now recognize function calls in the TUI and by hitting enter\n you can follow the call (recursively) and back, amongst other\n improvements.\n\n - Multiple threads/processes recording support in perf record, perf\n stat, perf top - which is activated via a comma-list of PIDs:\n\n\tperf top -p 21483,21485\n\tperf stat -p 21483,21485 -ddd\n\tperf record -p 21483,21485\n\n - Support for per UID views, via the --uid paramter to perf top, perf\n report, etc. For example \u0027perf top --uid mingo\u0027 will only show the\n tasks that I am running, excluding other users, root, etc.\n\n - Jump label restructurings and improvements - this includes the\n factoring out of the (hopefully much clearer) include/linux/static_key.h\n generic facility:\n\n\tstruct static_key key \u003d STATIC_KEY_INIT_FALSE;\n\n\t...\n\n\tif (static_key_false(\u0026key))\n\t do unlikely code\n\telse\n\t do likely code\n\n\t...\n\tstatic_key_slow_inc();\n\t...\n\tstatic_key_slow_inc();\n\t...\n\n The static_key_false() branch will be generated into the code with as\n little impact to the likely code path as possible. the\n static_key_slow_*() APIs flip the branch via live kernel code patching.\n\n This facility can now be used more widely within the kernel to\n micro-optimize hot branches whose likelihood matches the static-key\n usage and fast/slow cost patterns.\n\n - SW function tracer improvements: perf support and filtering support.\n\n - Various hardenings of the perf.data ABI, to make older perf.data\u0027s\n smoother on newer tool versions, to make new features integrate more\n smoothly, to support cross-endian recording/analyzing workflows\n better, etc.\n\n - Restructuring of the kprobes code, the splitting out of \u0027optprobes\u0027,\n and a corner case bugfix.\n\n - Allow the tracing of kernel console output (printk).\n\n - Improvements/fixes to user-space RDPMC support, allowing user-space\n self-profiling code to extract PMU counts without performing any\n system calls, while playing nice with the kernel side.\n\n - \u0027perf bench\u0027 improvements\n\n - ... and lots of internal restructurings, cleanups and fixes that made\n these features possible. And, as usual this list is incomplete as\n there were also lots of other improvements\n\n* \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (120 commits)\n perf report: Fix annotate double quit issue in branch view mode\n perf report: Remove duplicate annotate choice in branch view mode\n perf/x86: Prettify pmu config literals\n perf report: Enable TUI in branch view mode\n perf report: Auto-detect branch stack sampling mode\n perf record: Add HEADER_BRANCH_STACK tag\n perf record: Provide default branch stack sampling mode option\n perf tools: Make perf able to read files from older ABIs\n perf tools: Fix ABI compatibility bug in print_event_desc()\n perf tools: Enable reading of perf.data files from different ABI rev\n perf: Add ABI reference sizes\n perf report: Add support for taken branch sampling\n perf record: Add support for sampling taken branch\n perf tools: Add code to support PERF_SAMPLE_BRANCH_STACK\n x86/kprobes: Split out optprobe related code to kprobes-opt.c\n x86/kprobes: Fix a bug which can modify kernel code permanently\n x86/kprobes: Fix instruction recovery on optimized path\n perf: Add callback to flush branch_stack on context switch\n perf: Disable PERF_SAMPLE_BRANCH_* when not supported\n perf/x86: Add LBR software filter support for Intel CPUs\n ...\n" }, { "commit": "c31a94570552dcaa517c4f7a043ffd28835016be", "tree": "db6b03aaca5ca4a254912ae1a7f3e5e89ee182e4", "parents": [ "fde0eeaba7fe18dfd2ee6142fb562123e510ef84" ], "author": { "name": "Pekka Enberg", "email": "penberg@kernel.org", "time": "Mon Mar 19 15:13:29 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 19 15:13:29 2012 -0300" }, "message": "perf report: Add a simple GTK2-based \u0027perf report\u0027 browser\n\nThis patch adds a simple GTK2-based browser to \u0027perf report\u0027 that\u0027s\nbased on the TTY-based browser in builtin-report.c.\n\nTo launch \"perf report\" using the new GTK interface just type:\n\n $ perf report --gtk\n\nThe interface is somewhat limited in features at the moment:\n\n - No callgraph support\n\n - No KVM guest profiling support\n\n - No color coding for percentages\n\n - No sorting from the UI\n\n - ..and many, many more!\n\nThat said, I think this patch a reasonable start to build future features on.\n\nSigned-off-by: Pekka Enberg \u003cpenberg@kernel.org\u003e\nCc: Colin Walters \u003cwalters@verbum.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nLink: http://lkml.kernel.org/r/alpine.LFD.2.02.1202231952410.6689@tux.localdomain\n[ committer note: Added #pragma to make gtk no strict prototype problem go\n away as suggested by Colin Walters modulo avoiding push/pop ]\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "fde0eeaba7fe18dfd2ee6142fb562123e510ef84", "tree": "d04935030c08172968951e8a18c1558078da9b19", "parents": [ "f7e5410920fabadf294177f590b54ab0cadc4775" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Mon Mar 19 11:53:48 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 19 12:13:56 2012 -0300" }, "message": "perf report: Document --symbol-filter option\n\nAdd missing description of --symbol-filter in Documentation/perf-report.txt.\n\nReported-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1332125628-23088-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "f7e5410920fabadf294177f590b54ab0cadc4775", "tree": "3dfcb7dd38ae924622cf92fd7b695f266d6fa1f2", "parents": [ "6db6127c4dad634ab98709b81e2f2770890b0d53" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Mon Mar 19 11:46:20 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 19 12:07:30 2012 -0300" }, "message": "perf ui browser: Clean lines inside of the input window\n\nAs Arnaldo pointed out, it should be cleared to prevent the window from\ndisplaying overlapped strings on the region.\n\nReported-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1332125180-23041-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "6db6127c4dad634ab98709b81e2f2770890b0d53", "tree": "c9bf8237726a6bb1840acf5b5cfd13df3cf9fef8", "parents": [ "b14ffaca44c60da1c900aa36131ef3d9858001fc" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Mar 16 17:50:55 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 16:44:36 2012 -0300" }, "message": "perf report: Treat an argument as a symbol filter\n\nAs Ingo requested, it\u0027d be better off treating first (and the only)\nargument as a symbol filter, so that user doesn\u0027t need to input the\nsymbol on the dialog window on TUI.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1331887855-874-5-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "b14ffaca44c60da1c900aa36131ef3d9858001fc", "tree": "f78378c12bb5d8ce2113bee0a38a0f89ba33feb3", "parents": [ "938a23ae7f656ffde9dd67e83dddf4406f85d773" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Mar 16 17:50:54 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 16:41:30 2012 -0300" }, "message": "perf report: Add --symbol-filter option\n\nAdd new --symbol-filter command line option to set appropriate filter\nstring.\n\nIts short version is missing as I couldn\u0027t find an ideal one and\n--filter option of perf record also has no short version.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1331887855-874-4-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "938a23ae7f656ffde9dd67e83dddf4406f85d773", "tree": "6267df3c31d87762a1490d33073b4e709a8d6a11", "parents": [ "aa49f6ec990baa9d8f1b46a86fc169a8028776d4" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Mar 16 17:50:53 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 16:34:13 2012 -0300" }, "message": "perf ui browser: Add \u0027s\u0027 key to filter by symbol name\n\nNow user can enter symbol name interested via ui_browser__input_window,\nand perf can process it using hists__filter_by_symbol(). Giving empty\nsymbol (by pressing \u0027s\u0027 followed by ENTER) will disable the filtering.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1331887855-874-3-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "aa49f6ec990baa9d8f1b46a86fc169a8028776d4", "tree": "a9b2e4bd576e7c9390e07885ece249cfb4125e0d", "parents": [ "e94d53ebec2fb4795c18ad2e76ec633390b1e794" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Mar 16 17:50:52 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 16:32:36 2012 -0300" }, "message": "perf ui browser: Introduce ui_browser__input_window\n\nThe ui_browser__input_window() function is to get user\u0027s key input.\nCurrent implementation can handle maximum 49 characters.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1331887855-874-2-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "e94d53ebec2fb4795c18ad2e76ec633390b1e794", "tree": "e73b5b765d3383b7d09e713f6d5659fc1062c5e5", "parents": [ "5090c6aea84dcc474d0aabf9f66f1eab68a143eb" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Mar 16 17:50:51 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 16:31:09 2012 -0300" }, "message": "perf hists: Add hists__filter_by_symbol\n\nThis function will be used for simple (sub-)string matching filter based\non user input.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1331887855-874-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "5090c6aea84dcc474d0aabf9f66f1eab68a143eb", "tree": "d8272837b2983c278a8ad2c778512909d23d7fec", "parents": [ "4c19ea453d81cf8bd9bd446e6b129998f79997e7" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Mar 16 17:42:20 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 16:29:33 2012 -0300" }, "message": "perf tools: Do not disable members of group event\n\nWhen event group is enabled for forked task (i.e. no target task/cpu\nwas specified) all events were disabled and marked -\u003eenable_on_exec.\nHowever they wouldn\u0027t be counted at all since only group leader will\nbe enabled on exec actually.\n\nIn contrast to perf stat, perf record doesn\u0027t have a real problem\nas it enables all the event before proceeding. But it needs to be\nfixed anyway IMHO.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1331887340-32448-2-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "4c19ea453d81cf8bd9bd446e6b129998f79997e7", "tree": "92b2bb388bc799beca967c150c9f838a8eab9522", "parents": [ "5f537a26590e696466aae7f41e6b77e92c8486d1" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Mar 16 17:42:19 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 16:13:45 2012 -0300" }, "message": "perf stat: Fix event grouping on forked task\n\nWhen event group is enabled for forked task (i.e. no target task was\nspecified) all events were disabled and marked -\u003eenable_on_exec.\nHowever they are not counted at all since only group leader will be\nenabled on exec actually. So the result looked like below:\n\n $ ./perf stat --group -- sleep 1\n\n Performance counter stats for \u0027sleep 1\u0027:\n\n 0.554926 task-clock # 0.001 CPUs utilized\n \u003cnot counted\u003e context-switches\n \u003cnot counted\u003e CPU-migrations\n \u003cnot counted\u003e page-faults\n \u003cnot counted\u003e cycles\n \u003cnot supported\u003e stalled-cycles-frontend\n \u003cnot supported\u003e stalled-cycles-backend\n \u003cnot counted\u003e instructions\n \u003cnot counted\u003e branches\n \u003cnot counted\u003e branch-misses\n\n 1.001228093 seconds time elapsed\n\nFix it by disabling group leader only.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1331887340-32448-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "5f537a26590e696466aae7f41e6b77e92c8486d1", "tree": "6946ba5b2a4cc1133ab11d8a81c37465f794e655", "parents": [ "cd82a32e9924d3a82bd27f830755d23e4ded25bc" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Mar 15 20:09:18 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 14:30:13 2012 -0300" }, "message": "perf tools: Add support to specify pmu style event\n\nAdded new event rule to the event definition grammar:\n\nevent_def: event_pmu |\n ...\nevent_pmu: PE_NAME \u0027/\u0027 event_config \u0027/\u0027\n\nUsing this rule, event could be now specified like:\n cpu/config\u003d1,config1\u003d2,config2\u003d3/u\n\nwhere pmu name \u0027cpu\u0027 is looked up via following path:\n ${sysfs_mount}/bus/event_source/devices/${pmu}\n\nand config options are bound to the pmu\u0027s format definiton:\n ${sysfs_mount}/bus/event_source/devices/${pmu}/format\n\nThe hardcoded config options still stays and have precedence\nover any format field defined with same name.\n\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLink: http://lkml.kernel.org/n/tip-50d8nr94f8k4wkezutrxvthe@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "cd82a32e9924d3a82bd27f830755d23e4ded25bc", "tree": "63ff4fe274d372c22de3937bb867cfe37c7737d6", "parents": [ "8f707d843c2f4023490a873dbc182f632a3a5906" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Mar 15 20:09:17 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 14:29:35 2012 -0300" }, "message": "perf tools: Add perf pmu object to access pmu format definition\n\nAdding pmu object which provides interface to pmu\u0027s sysfs\nevent format definition located at:\n ${sysfs_mount}/bus/event_source/devices/${pmu}/format\n\nFollowing interface is exported:\n struct perf_pmu* perf_pmu__find(char *name);\n - this function returns pmu object, which is then\n passed as a handle to other interface functions\n\n int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,\n struct list_head *head_terms);\n - this function configures perf_event_attr struct based\n on pmu\u0027s format definitions and config terms data,\n containined in head_terms list.\n\nParser generator is used to retrive the pmu\u0027s format definition.\nThe generated parser is part of the patch. Added makefile rule\n\u0027pmu-parser\u0027 to generate the parser code out of the bison/flex\nsources.\n\nAdded builtin test \u0027Test perf pmu format parsing\u0027, which could\nbe run like:\n\tperf test pmu\n\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLink: http://lkml.kernel.org/n/tip-errz96u1668gj9wlop1zhpht@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "8f707d843c2f4023490a873dbc182f632a3a5906", "tree": "e4c6d509756aa869314888de0d5873c4a20a7e92", "parents": [ "89812fc81f8d62d70433a8ff63d26819f372e8ec" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Mar 15 20:09:16 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 14:26:06 2012 -0300" }, "message": "perf tools: Add config options support for event parsing\n\nAdding a new rule to the event grammar to be able to specify\nvalues of additional attributes of symbolic event.\n\nThe new syntax for event symbolic definition is:\n\nevent_legacy_symbol: PE_NAME_SYM \u0027/\u0027 event_config \u0027/\u0027 |\n PE_NAME_SYM sep_slash_dc\n\nevent_config: event_config \u0027,\u0027 event_term | event_term\n\nevent_term: PE_NAME \u0027\u003d\u0027 PE_NAME |\n PE_NAME \u0027\u003d\u0027 PE_VALUE\n PE_NAME\n\nsep_slash_dc: \u0027/\u0027 | \u0027:\u0027 |\n\nAt the moment the config options are hardcoded to be used for legacy\nsymbol events to define several perf_event_attr fields. It is:\n\n \u0027config\u0027 to define perf_event_attr::config\n \u0027config1\u0027 to define perf_event_attr::config1\n \u0027config2\u0027 to define perf_event_attr::config2\n \u0027period\u0027 to define perf_event_attr::sample_period\n\nLegacy events could be now specified as:\n cycles/period\u003d100000/\n\nIf term is specified without the value assignment, then 1 is\nassigned by default.\n\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLink: http://lkml.kernel.org/n/tip-mgkavww9790jbt2jdkooyv4q@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "89812fc81f8d62d70433a8ff63d26819f372e8ec", "tree": "8d2c6ad6eee1200f5107fa8063a002f415887ba3", "parents": [ "641cc938815dfd09f8fa1ec72deb814f0938ac33" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Mar 15 20:09:15 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Mar 16 14:20:21 2012 -0300" }, "message": "perf tools: Add parser generator for events parsing\n\nChanging event parsing to use flex/bison parse generator.\nThe event syntax stays as it was.\n\ngrammar description:\n\nevents: events \u0027,\u0027 event | event\n\nevent: event_def PE_MODIFIER_EVENT | event_def\n\nevent_def: event_legacy_symbol sep_dc |\n event_legacy_cache sep_dc |\n event_legacy_breakpoint sep_dc |\n event_legacy_tracepoint sep_dc |\n event_legacy_numeric sep_dc |\n event_legacy_raw sep_dc\n\nevent_legacy_symbol: PE_NAME_SYM\n\nevent_legacy_cache: PE_NAME_CACHE_TYPE \u0027-\u0027 PE_NAME_CACHE_OP_RESULT \u0027-\u0027 PE_NAME_CACHE_OP_RESULT |\n PE_NAME_CACHE_TYPE \u0027-\u0027 PE_NAME_CACHE_OP_RESULT |\n PE_NAME_CACHE_TYPE\n\nevent_legacy_raw: PE_SEP_RAW PE_VALUE\n\nevent_legacy_numeric: PE_VALUE \u0027:\u0027 PE_VALUE\n\nevent_legacy_breakpoint: PE_SEP_BP \u0027:\u0027 PE_VALUE \u0027:\u0027 PE_MODIFIER_BP\n\nevent_breakpoint_type: PE_MODIFIER_BPTYPE | empty\n\nPE_NAME_SYM: cpu-cycles|cycles |\n stalled-cycles-frontend|idle-cycles-frontend |\n stalled-cycles-backend|idle-cycles-backend |\n instructions |\n cache-references |\n cache-misses |\n branch-instructions|branches |\n branch-misses |\n bus-cycles |\n cpu-clock |\n task-clock |\n page-faults|faults |\n minor-faults |\n major-faults |\n context-switches|cs |\n cpu-migrations|migrations |\n alignment-faults |\n emulation-faults\n\nPE_NAME_CACHE_TYPE: L1-dcache|l1-d|l1d|L1-data |\n L1-icache|l1-i|l1i|L1-instruction |\n LLC|L2 |\n dTLB|d-tlb|Data-TLB |\n iTLB|i-tlb|Instruction-TLB |\n branch|branches|bpu|btb|bpc |\n node\n\nPE_NAME_CACHE_OP_RESULT: load|loads|read |\n store|stores|write |\n prefetch|prefetches |\n speculative-read|speculative-load |\n refs|Reference|ops|access |\n misses|miss\n\nPE_MODIFIER_EVENT: [ukhp]{0,5}\n\nPE_MODIFIER_BP: [rwx]\n\nPE_SEP_BP: \u0027mem\u0027\n\nPE_SEP_RAW: \u0027r\u0027\n\nsep_dc: \u0027:\u0027 |\n\nAdded flex/bison files for event grammar parsing. The generated\nparser is part of the patch. Added makefile rule \u0027event-parser\u0027\nto generate the parser code out of the bison/flex sources.\n\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLink: http://lkml.kernel.org/n/tip-u4pfig5waq3ll2bfcdex8fgi@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "4a3d2d9bfb3b594b6e1f2b7eabfaf4e820a18c0e", "tree": "c668b664902ec05499dd359a1265513872290da4", "parents": [ "bea95c152dee1791dd02cbc708afbb115bb00f9a" ], "author": { "name": "Jan Beulich", "email": "JBeulich@suse.com", "time": "Thu Mar 08 09:29:28 2012 +0000" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Mar 15 14:23:28 2012 -0300" }, "message": "perf tools: Adjust make rules\n\nAdd rules to generate pre-processed files (just like are available for\nthe normal kernel build), and adjust the rule to create assembly files\nfrom C ones to produce its output in the output directory rather than\nin the source tree.\n\nE.g.\n\n $ make -C tools/perf/ O\u003d/tmp/perf /tmp/perf/builtin-top.i\n make: Entering directory `/home/git/linux/tools/perf\u0027\n CC /tmp/perf/builtin-top.i\n make: Leaving directory `/home/git/linux/tools/perf\u0027\n $ wc -l /tmp/perf/builtin-top.i\n 31379 /tmp/perf/builtin-top.i\n $\n\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4F588A0802000078000770FF@nat28.tlf.novell.com\nSigned-off-by: Jan Beulich \u003cjbeulich@suse.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "eae7a755ee81129370c8f555b0d5672e6673735d", "tree": "f9bf3cf7919d71f3b99b94c92b8bf81bf8af4a11", "parents": [ "e7f01d1e3d8d501deb8abeaa269d5d48a703b8b0" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Mar 14 12:42:34 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Mar 14 12:42:34 2012 -0300" }, "message": "perf tools, x86: Build perf on older user-space as well\n\nOn ancient systems I get this build failure:\n\n util/../../../arch/x86/include/asm/unistd.h:67:29: error: asm/unistd_64.h: No such file or directory\n In file included from util/cache.h:7,\n from builtin-test.c:8:\n util/../perf.h: In function ‘sys_perf_event_open’:In file included from util/../perf.h:16\n perf.h:170: error: ‘__NR_perf_event_open’ undeclared (first use in this function)\n\nThe reason is that this old system does not have the split\nunistd.h headers yet, from which to pick up the syscall\ndefinitions.\n\nAdd the syscall numbers to the already existing i386 and x86_64\nblocks in perf.h, and also provide empty include file stubs.\n\nWith this patch perf builds and works fine on 5 years old\nuser-space as well.\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLink: http://lkml.kernel.org/n/tip-jctwg64le1w47tuaoeyftsg9@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "e7f01d1e3d8d501deb8abeaa269d5d48a703b8b0", "tree": "2746465309fd16392ed7c6265dea53366c6e52c7", "parents": [ "b832796caa1fda8516464a003c8c7cc547bc20c2" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Mar 14 12:29:29 2012 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Mar 14 12:36:19 2012 -0300" }, "message": "perf tools: Use scnprintf where applicable\n\nSeveral places were expecting that the value returned was the number of\ncharacters printed, not what would be printed if there was space.\n\nFix it by using the scnprintf and vscnprintf variants we inherited from\nthe kernel sources.\n\nSome corner cases where the number of printed characters were not\naccounted were fixed too.\n\nReported-by: Anton Blanchard \u003canton@samba.org\u003e\nCc: Anton Blanchard \u003canton@samba.org\u003e\nCc: Eric B Munson \u003cemunson@mgebm.net\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Yanmin Zhang \u003cyanmin_zhang@linux.intel.com\u003e\nCc: stable@kernel.org\nLink: http://lkml.kernel.org/n/tip-kwxo2eh29cxmd8ilixi2005x@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "b832796caa1fda8516464a003c8c7cc547bc20c2", "tree": "04d13912b11354bb35e239fa06d0e9535b160fc8", "parents": [ "8aa8a7c80ccdfac2df5ee48a51a4a7bee2143d4f" ], "author": { "name": "Anton Blanchard", "email": "anton@samba.org", "time": "Wed Mar 07 11:42:49 2012 +1100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Mar 14 12:36:19 2012 -0300" }, "message": "perf tools: Incorrect use of snprintf results in SEGV\n\nI have a workload where perf top scribbles over the stack and we SEGV.\nWhat makes it interesting is that an snprintf is causing this.\n\nThe workload is a c++ gem that has method names over 3000 characters\nlong, but snprintf is designed to avoid overrunning buffers. So what\nwent wrong?\n\nThe problem is we assume snprintf returns the number of characters\nwritten:\n\n ret +\u003d repsep_snprintf(bf + ret, size - ret, \"[%c] \", self-\u003elevel);\n...\n ret +\u003d repsep_snprintf(bf + ret, size - ret, \"%s\", self-\u003ems.sym-\u003ename);\n\nUnfortunately this is not how snprintf works. snprintf returns the\nnumber of characters that would have been written if there was enough\nspace. In the above case, if the first snprintf returns a value larger\nthan size, we pass a negative size into the second snprintf and happily\nscribble over the stack. If you have 3000 character c++ methods thats a\nlot of stack to trample.\n\nThis patch fixes repsep_snprintf by clamping the value at size - 1 which\nis the maximum snprintf can write before adding the NULL terminator.\n\nI get the sinking feeling that there are a lot of other uses of snprintf\nthat have this same bug, we should audit them all.\n\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Eric B Munson \u003cemunson@mgebm.net\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Yanmin Zhang \u003cyanmin_zhang@linux.intel.com\u003e\nCc: stable@kernel.org\nLink: http://lkml.kernel.org/r/20120307114249.44275ca3@kryten\nSigned-off-by: Anton Blanchard \u003canton@samba.org\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "8aa8a7c80ccdfac2df5ee48a51a4a7bee2143d4f", "tree": "605e7196aa1c53aece78e3dfc897c7030e53af14", "parents": [ "87e24f4b67e68d9fd8df16e0bf9c66d1ad2a2533" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Tue Mar 13 16:51:02 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 13 17:01:28 2012 +0100" }, "message": "perf record: Fix buffer overrun bug in tracepoint_id_to_path()\n\nThis patch fixes a buffer overrun bug in\ntracepoint_id_to_path(). The bug manisfested itself as a memory\nerror reported by perf record. I ran into it with perf sched:\n\n $ perf sched rec noploop 2 noploop for 2 seconds\n [ perf record: Woken up 14 times to write data ]\n [ perf record: Captured and wrote 42.701 MB perf.data (~1865622 samples) ]\n Fatal: No memory to alloc tracepoints list\n\nIt turned out that tracepoint_id_to_path() was reading the\ntracepoint id using read() but the buffer was not large enough\nto include the \\n terminator for id with 4 digits or more.\n\nThe patch fixes the problem by extending the buffer to a more\nreasonable size covering all possible id length include \\n\nterminator. Note that atoll() stops at the first non digit\ncharacter, thus it is not necessary to clear the buffer between\neach read.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nAcked-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: fweisbec@gmail.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/20120313155102.GA6465@quad\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bea95c152dee1791dd02cbc708afbb115bb00f9a", "tree": "af9994c42c5fdd81ba3dadd7b812e2fa85273353", "parents": [ "f9b4eeb809c6d031cc9561cc34dd691701cb2c2a", "24bff2dc0f77b1f186b7bdf30060caf3df191a68" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 12 20:46:35 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 12 20:47:05 2012 +0100" }, "message": "Merge branch \u0027perf/hw-branch-sampling\u0027 into perf/core\n\nMerge reason: The \u0027perf record -b\u0027 hardware branch sampling feature is ready for upstream.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "24bff2dc0f77b1f186b7bdf30060caf3df191a68", "tree": "8a29fe1cef00c5b93a4fd8b0b0e54ff62fa99dde", "parents": [ "8bcd65fd29e9abfb633bfd6eedaf24b22e211f3a" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Mon Mar 12 16:13:30 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 12 20:46:16 2012 +0100" }, "message": "perf report: Fix annotate double quit issue in branch view mode\n\nThis patch fixes perf report to not go back two levels when\npressing the \u0027q\u0027 key while annotating in branch view mode.\n\nWhen pressing \u0027q\u0027 in annotate mode and if the branch source\nand target belong to different functions, perf now brings\nup the annotation popup menu again to offer the option to\nannotate the other branch source or target.\n\nAs part of the code restructuring in perf_evsel__hists_browse()\nwe also fix a memory leak on options[] in case of error.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1331565210-10865-3-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8bcd65fd29e9abfb633bfd6eedaf24b22e211f3a", "tree": "aabd3e26d2f042208de33ed5e24fc206cf264b3d", "parents": [ "a68c2c58171391ef368fced32a555b2f0ff106e5" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Mon Mar 12 16:13:29 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 12 20:46:16 2012 +0100" }, "message": "perf report: Remove duplicate annotate choice in branch view mode\n\nThis patch removes the duplicated annotate selection when\nbrowsing in branch view mode. If the sym and dso oof the branch\nsource and target are the same, then only one annotate choice is\nproposed.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1331565210-10865-2-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a68c2c58171391ef368fced32a555b2f0ff106e5", "tree": "9952e5bb45d3890e67f9f81ad704489d5a114d94", "parents": [ "993ac88d5892629fbe1f8a54857f9947f49f0d96" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Mar 08 23:47:48 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:08 2012 +0100" }, "message": "perf report: Enable TUI in branch view mode\n\nThis patch updates perf report to support TUI mode\nwhen the perf.data file contains samples with branch\nstacks.\n\nFor each row in the report, it is possible to annotate\neither the source or target of each branch.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1331246868-19905-5-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "993ac88d5892629fbe1f8a54857f9947f49f0d96", "tree": "27f23cc95a72be350781803530e09b1535b719e7", "parents": [ "330aa675b4f92a422cb6d3acbbfd16a628017520" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Mar 08 23:47:47 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:08 2012 +0100" }, "message": "perf report: Auto-detect branch stack sampling mode\n\nThis patch enhances perf report to auto-detect when the\nperf.data file contains samples with branch stacks. That way it\nis not necessary to use the -b option.\n\nTo force branch view mode to off, simply use --no-branch-stack.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1331246868-19905-4-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "330aa675b4f92a422cb6d3acbbfd16a628017520", "tree": "b1feef795c8de616b31e8a0683c7c0e7498d2d33", "parents": [ "a5aabdacde9caff54886ae454e0fad2f26929753" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Mar 08 23:47:46 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:08 2012 +0100" }, "message": "perf record: Add HEADER_BRANCH_STACK tag\n\nThis patch adds a new feature bit, namely,\nHEADER_BRANCH_STACK. When present, it indicates\nthat sample records may contain branch stack.\n\nThis could be useful to a viewer to switch to\nbranch mode without having to parse all the\nsamples or without a specific cmdline option.\n\nThis will be used in a subsequent patch to\nenhance perf report with branch stacks.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1331246868-19905-3-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a5aabdacde9caff54886ae454e0fad2f26929753", "tree": "6784617e8e37edf1ac25763bfc7481eef83d74ae", "parents": [ "114382a0aea97974803c942f106d462cbca5c64d" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Mar 08 23:47:45 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:07 2012 +0100" }, "message": "perf record: Provide default branch stack sampling mode option\n\nThis patch chanegs the logic of the -b, --branch-stack options\nof perf record.\n\nBased on users\u0027 request, the patch provides a default filter\nmode with the -b (or --branch-any) option. With the option,\nany type of taken branches is sampled.\n\nWith -j (or --branch-filter), the user can specify any\nvalid combination of branch types and privilege levels\nif supported by the underlying hardware.\n\nThe -b (--branch any) is a shortcut for: --branch-filter any.\n\n $ perf record -b foo\n\nor:\n\n $ perf record --branch-filter any foo\n\nFor more specific filtering:\n\n $ perf record --branch-filter ind_call,u foo\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1331246868-19905-2-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "114382a0aea97974803c942f106d462cbca5c64d", "tree": "b7557e44097fc13e6ebdec51ba8d14e5c63a61d9", "parents": [ "62db90681c0db8c76e5db006b929a2edd5d12ae6" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Feb 09 23:21:08 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:07 2012 +0100" }, "message": "perf tools: Make perf able to read files from older ABIs\n\nThis patches provides a way to handle legacy perf.data\nfiles. Legacy files are those using the older PERFFILE\nsignature.\n\nFor those, it is still necessary to detect endianness but\nwithout comparing their header-\u003eattr_size with the\ntool\u0027s own version as it may be different. Instead, we use\na reference table for all known sizes from the legacy era.\n\nWe try all the combinations for sizes and endianness. If we find\na match, we proceed, otherwise we return: \"incompatible file\nformat\".\n\nThis is also done for the pipe-mode file format.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: robert.richter@amd.com\nCc: ming.m.lin@intel.com\nCc: andi@firstfloor.org\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1328826068-11713-19-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "62db90681c0db8c76e5db006b929a2edd5d12ae6", "tree": "9a758f8c9c41b34ae96533571a132b226819803f", "parents": [ "69996df486fc3921bbaaa17fca0d68f537f9eabf" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Feb 09 23:21:07 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:06 2012 +0100" }, "message": "perf tools: Fix ABI compatibility bug in print_event_desc()\n\nThis patches cleans up local variable types for msz and ret.\nThey need to be size_t and ssize_t respectively.\n\nIt also fixes a bug whereby perf would not read attr struct\nwith a different size than what it knows about.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: robert.richter@amd.com\nCc: ming.m.lin@intel.com\nCc: andi@firstfloor.org\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1328826068-11713-18-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "69996df486fc3921bbaaa17fca0d68f537f9eabf", "tree": "4d41484700db59dbf769af11b5e3f70ba34e222d", "parents": [ "cb5d76999029ae7a517cb07dfa732c1b5a934fc2" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Feb 09 23:21:06 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:06 2012 +0100" }, "message": "perf tools: Enable reading of perf.data files from different ABI rev\n\nThis patch allows perf to process perf.data files generated\nusing an ABI that has a different perf_event_attr struct size,\ni.e., a different ABI version.\n\nThe perf_event_attr can be extended, yet perf needs to cope with\nolder perf.data files. Similarly, perf must be able to cope with\na perf.data file which is using a newer version of the ABI than\nwhat it knows about.\n\nThis patch adds read_attr(), a routine that reads a\nperf_event_attr struct from a file incrementally based on its\nadvertised size. If the on-file struct is smaller than what perf\nknows, then the extra fields are zeroed. If the on-file struct\nis bigger, then perf only uses what it knows about, the rest is\nskipped.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: robert.richter@amd.com\nCc: ming.m.lin@intel.com\nCc: andi@firstfloor.org\nCc: asharma@fb.com\nCc: ravitillo@lbl.gov\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1328826068-11713-17-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b50311dc2ac1c04ad19163c2359910b25e16caf6", "tree": "80a4489b2b268b7512dd4eb566858a6bae8bfffe", "parents": [ "bdfebd848f2a14e639031a0b0e61d7c7ee5e5fd2" ], "author": { "name": "Roberto Agostino Vitillo", "email": "ravitillo@lbl.gov", "time": "Thu Feb 09 23:21:03 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:05 2012 +0100" }, "message": "perf report: Add support for taken branch sampling\n\nThis patch adds support for taken branch sampling, i.e, the\nPERF_SAMPLE_BRANCH_STACK feature to perf report. In other\nwords, to display histograms based on taken branches rather\nthan executed instructions addresses.\n\nThe new option is called -b and it takes no argument. To\ngenerate meaningful output, the perf.data must have been\nobtained using perf record -b xxx ... where xxx is a branch\nfilter option.\n\nThe output shows symbols, modules, sorted by \u0027who branches\nwhere\u0027 the most often. The percentages reported in the first\ncolumn refer to the total number of branches captured and\nnot the usual number of samples.\n\nHere is a quick example.\nHere branchy is simple test program which looks as follows:\n\nvoid f2(void)\n{}\nvoid f3(void)\n{}\nvoid f1(unsigned long n)\n{\n if (n \u0026 1UL)\n f2();\n else\n f3();\n}\nint main(void)\n{\n unsigned long i;\n\n for (i\u003d0; i \u003c N; i++)\n f1(i);\n return 0;\n}\n\nHere is the output captured on Nehalem, if we are\nonly interested in user level function calls.\n\n$ perf record -b any_call,u -e cycles:u branchy\n\n$ perf report -b --sort\u003dsymbol\n 52.34% [.] main [.] f1\n 24.04% [.] f1 [.] f3\n 23.60% [.] f1 [.] f2\n 0.01% [k] _IO_new_file_xsputn [k] _IO_file_overflow\n 0.01% [k] _IO_vfprintf_internal [k] _IO_new_file_xsputn\n 0.01% [k] _IO_vfprintf_internal [k] strchrnul\n 0.01% [k] __printf [k] _IO_vfprintf_internal\n 0.01% [k] main [k] __printf\n\nAbout half (52%) of the call branches captured are from main()\n-\u003e f1(). The second half (24%+23%) is split in two equal shares\nbetween f1() -\u003e f2(), f1() -\u003ef3(). The output is as expected\ngiven the code.\n\nIt should be noted, that using -b in perf record does not\neliminate information in the perf.data file. Consequently, a\ntypical profile can also be obtained by perf report by simply\nnot using its -b option.\n\nIt is possible to sort on branch related columns:\n\n - dso_from, symbol_from\n - dso_to, symbol_to\n - mispredict\n\nSigned-off-by: Roberto Agostino Vitillo \u003cravitillo@lbl.gov\u003e\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: robert.richter@amd.com\nCc: ming.m.lin@intel.com\nCc: andi@firstfloor.org\nCc: asharma@fb.com\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1328826068-11713-14-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bdfebd848f2a14e639031a0b0e61d7c7ee5e5fd2", "tree": "8ebcc7afda6b506dcd22d44bccdbd925c02b6768", "parents": [ "b5387528f31d98acedf06e930554b563d87e2383" ], "author": { "name": "Roberto Agostino Vitillo", "email": "ravitillo@lbl.gov", "time": "Thu Feb 09 23:21:02 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:05 2012 +0100" }, "message": "perf record: Add support for sampling taken branch\n\nThis patch adds a new option to enable taken branch stack\nsampling, i.e., leverage the PERF_SAMPLE_BRANCH_STACK feature\nof perf_events.\n\nThere is a new option to active this mode: -b.\nIt is possible to pass a set of filters to select the type of\nbranches to sample.\n\nThe following filters are available:\n\n - any : any type of branches\n - any_call : any function call or system call\n - any_ret : any function return or system call return\n - any_ind : any indirect branch\n - u: only when the branch target is at the user level\n - k: only when the branch target is in the kernel\n - hv: only when the branch target is in the hypervisor\n\nFilters can be combined by passing a comma separated list\nto the option:\n\n$ perf record -b any_call,u -e cycles:u branchy\n\nSigned-off-by: Roberto Agostino Vitillo \u003cravitillo@lbl.gov\u003e\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: robert.richter@amd.com\nCc: ming.m.lin@intel.com\nCc: andi@firstfloor.org\nCc: asharma@fb.com\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1328826068-11713-13-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b5387528f31d98acedf06e930554b563d87e2383", "tree": "0a8fff59cc7d1392d7adfbbc0f9beacc9ca6d20b", "parents": [ "d010b3326cf06b3406cdd88af16dcf4e4b6fec2e" ], "author": { "name": "Roberto Agostino Vitillo", "email": "ravitillo@lbl.gov", "time": "Thu Feb 09 23:21:01 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 09 08:26:04 2012 +0100" }, "message": "perf tools: Add code to support PERF_SAMPLE_BRANCH_STACK\n\nThis patch adds:\n\n - ability to parse samples with PERF_SAMPLE_BRANCH_STACK\n - sort on branches (dso_from, symbol_from, dso_to, symbol_to, mispredict)\n - build histograms on branches\n\nSigned-off-by: Roberto Agostino Vitillo \u003cravitillo@lbl.gov\u003e\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: acme@redhat.com\nCc: robert.richter@amd.com\nCc: ming.m.lin@intel.com\nCc: andi@firstfloor.org\nCc: asharma@fb.com\nCc: vweaver1@eecs.utk.edu\nCc: khandual@linux.vnet.ibm.com\nCc: dsahern@gmail.com\nLink: http://lkml.kernel.org/r/1328826068-11713-12-git-send-email-eranian@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ff2a6617c2acd6a8dc468c90ab8708a6ad112bb0", "tree": "8289aeb7e18d6b7c10d55d28a3480aab0489b40a", "parents": [ "824ac0e9838aadf5a398850c80ec2a43b9d0ca49" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Feb 23 17:46:24 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 05 10:15:50 2012 -0300" }, "message": "perf annotate: Add missing newline on error message\n\nIf perf.data couldn\u0027t find vmlinux image for the given build-id,\nit would print error message. However it lacked a newline at the\nend, so the output looked like below:\n\n $ perf annotate --stdio\n No vmlinux file with build id 63b554b2e90f14a4bced200008865e757d3e8b36\n was found in the path.\n\n Please use:\n\n perf buildid-cache -av vmlinux\n\n or:\n\n --vmlinux vmlinux Percent | Source code \u0026 Disassembly of a.out\n ------------------------------------------------\n :\n :\n :\n : Disassembly of section .text:\n :\n : 00000000004004f4 \u003cfoo\u003e:\n 0.00 : 4004f4: push %rbp\n 0.00 : 4004f5: mov %rsp,%rbp\n 0.00 : 4004f8: movl $0x0,-0x4(%rbp)\n 0.00 : 4004ff: jmp 400517 \u003cfoo+0x23\u003e\n 14.70 : 400501: mov 0x200b28(%rip),%rax # 601030 \u003ccount\u003e\n 0.02 : 400508: add $0x1,%rax\n 0.01 : 40050c: mov %rax,0x200b1d(%rip) # 601030 \u003ccount\u003e\n 0.01 : 400513: addl $0x1,-0x4(%rbp)\n 13.92 : 400517: cmpl $0x98967f,-0x4(%rbp)\n 71.33 : 40051e: jle 400501 \u003cfoo+0xd\u003e\n 0.00 : 400520: leaveq\n 0.00 : 400521: retq\n\nFix it by adding a newline at the end of the message. It doesn\u0027t affect\nthe tui output AFAICS. New output will look like this:\n\n ...\n or:\n\n --vmlinux vmlinux\n Percent | Source code \u0026 Disassembly of a.out\n ------------------------------------------------\n :\n :\n :\n : Disassembly of section .text:\n ...\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1329986784-4916-6-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "824ac0e9838aadf5a398850c80ec2a43b9d0ca49", "tree": "bb4ff76d677832e455f587fae1f574311adbadea", "parents": [ "142cfbd0a0353bbcf4ce62f1d4b4ffaa5fe228f9" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Feb 23 17:46:23 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 05 10:15:50 2012 -0300" }, "message": "perf annotate: Fix help string on tui\n\nSeparate multiple binding using /, capitalize descriptions, add missing\nkey binding.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1329986784-4916-5-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "142cfbd0a0353bbcf4ce62f1d4b4ffaa5fe228f9", "tree": "bf302f187db04380ad75749aa6c0a1c5220d4bbc", "parents": [ "ef7c537221160c285704997a913fb66ddc1fe6bc" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Feb 23 17:46:22 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 05 10:15:50 2012 -0300" }, "message": "perf annotate: Restore title when came back to original symbol\n\nOn tui annotation, the title was set to name of the target symbol if\nuser selects the target. However it remained after returning to original\nsymbol from the target. Fix it.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1329986784-4916-4-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "ef7c537221160c285704997a913fb66ddc1fe6bc", "tree": "8b8417188a99b4c6bb954fedb0acbc2ef16c6995", "parents": [ "58e817d997d162682717dcaae39393dcadf5f296" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Feb 23 17:46:21 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 05 10:15:50 2012 -0300" }, "message": "perf annotate: Handle lower case key code in annotate_browser__run()\n\nAccepting upper case character only is unconvenient since it requires\nSHIFT key too. Why not change to it accept a simple key stroke?\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1329986784-4916-3-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "58e817d997d162682717dcaae39393dcadf5f296", "tree": "3754e69f23bb5d7dc2662217f69f83ae4941486d", "parents": [ "67cbbd7f1838cc8f6900f39d860d6c2e1f86cf61" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Feb 23 17:46:20 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 05 10:15:50 2012 -0300" }, "message": "perf annotate: Print asm code as blue when source code is displayed\n\nPrint unselected asm code lines as blue. This is what we do now for\n--stdio.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1329986784-4916-2-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "67cbbd7f1838cc8f6900f39d860d6c2e1f86cf61", "tree": "843feb55b79ce45313ce5e0b3071d66dcf2a1a55", "parents": [ "41c21a68308f2f268a01ec1a7fa5f650e320a0f3" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Feb 23 16:08:14 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 05 10:15:50 2012 -0300" }, "message": "perf tools: Add descriptions of missing Makefile arguments\n\nThere are some variable arguments can be specified on make invocation,\nbut some of them are missing descriptions so that user cannot be\ninformed easily. Fix it.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1329980894-4289-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "41c21a68308f2f268a01ec1a7fa5f650e320a0f3", "tree": "a843f5fdfeff7eda29ef3b1ea4b7b9e0836e97a8", "parents": [ "737f24bda723fdf89ecaacb99fa2bf5683c32799" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu Feb 23 12:13:36 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Mar 05 10:15:49 2012 -0300" }, "message": "perf evlist: Restore original errno after open failed\n\nIf perf_evsel__open() failed, the errno was set and returned properly.\n\nHowever since the perf_evlist__open() called close() on fd\u0027s for all of\nevsel x cpu x thread after the failure, the errno was overridden by\nother code (EBADF). So the caller of the function ended up seeing\ndifferent error message and getting confused.\n\nFit it by restoring original return value. Because one of caller of the\nfunction is in the python extension, and it uses system errno\ninternally, it\u0027d be better restoring the original value rather than\nusing the return value of the function directly, IMHO (i.e. I\u0027m not a\npython expert :)\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1329966816-23175-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "737f24bda723fdf89ecaacb99fa2bf5683c32799", "tree": "35495fff3e9956679cb5468e74e6814c8e44ee66", "parents": [ "8eedce996556d7d06522cd3a0e6069141c8dffe0", "b7c924274c456499264d1cfa3d44063bb11eb5db" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 05 09:20:08 2012 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 05 09:20:08 2012 +0100" }, "message": "Merge branch \u0027perf/urgent\u0027 into perf/core\n\nConflicts:\n\ttools/perf/builtin-record.c\n\ttools/perf/builtin-top.c\n\ttools/perf/perf.h\n\ttools/perf/util/top.h\n\nMerge reason: resolve these cherry-picking conflicts.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bc76efe64533305b55d1f0834fd03414da8a12b2", "tree": "4494b12fe85f4a4f088a82588d23b2e19e6500ad", "parents": [ "8f54ed4a2d8cf001456d3779bdb33985a050bf03" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Feb 14 14:05:30 2012 -0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Mar 03 12:19:56 2012 -0300" }, "message": "perf tools: Handle kernels that don\u0027t support attr.exclude_{guest,host}\n\nJust fall back to resetting those fields, if set, warning the user that\nthat feature is not available.\n\nIf guest samples appear they will just be discarded because no struct\nmachine will be found and thus the event will be accounted as not\nhandled and dropped, see 0c09571.\n\nReported-by: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nTested-by: Joerg Roedel \u003cjoerg.roedel@amd.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Joerg Roedel \u003cjoerg.roedel@amd.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-vuwxig36mzprl5n7nzvnxxsh@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "8f54ed4a2d8cf001456d3779bdb33985a050bf03", "tree": "8cbbb0d67287fe55caeaadab94f6f019992af492", "parents": [ "6e557a6adfdbb511dbfa7a0a4aa2148f76a01c6d" ], "author": { "name": "Joerg Roedel", "email": "joerg.roedel@amd.com", "time": "Fri Feb 10 18:05:05 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Mar 03 12:13:41 2012 -0300" }, "message": "perf tools: Change perf_guest default back to false\n\nSetting perf_guest to true by default makes no sense because the perf\nsubcommands can not setup guest symbol information and thus not process\nand guest samples. The only exception is perf-kvm which changes the\nperf_guest value on its own. So change the default for perf_guest back\nto false.\n\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jason Wang \u003cjasowang@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1328893505-4115-3-git-send-email-joerg.roedel@amd.com\nSigned-off-by: Joerg Roedel \u003cjoerg.roedel@amd.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "6e557a6adfdbb511dbfa7a0a4aa2148f76a01c6d", "tree": "3614a30dc0af5c32c14968220c13499a34e83fa4", "parents": [ "1018faa6cf23b256bf25919ef203cd7c129f06f2" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Mon Feb 06 15:27:52 2012 -0700" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Mar 03 11:02:16 2012 -0300" }, "message": "perf record: No build id option fails\n\nA recent refactoring of perf-record introduced the following:\n\nperf record -a -B\nCouldn\u0027t generating buildids. Use --no-buildid to profile anyway.\nsleep: Terminated\n\nI believe the triple negative was meant to be only a double negative.\n:-) While I\u0027m there, fixed the grammar on the error message.\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLink: http://lkml.kernel.org/r/1328567272-13190-1-git-send-email-dsahern@gmail.com\nSigned-off-by: David Ahern \u003cdsahern@gmail.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "1c1bc9223387dacc48eb2b61b0baabe7e9cf47f6", "tree": "873357b11c3423f2b8798b0c9e8e5ac18735db66", "parents": [ "cfbd70c17c4535e64be92ea442a2a45078a18184" ], "author": { "name": "Prashanth Nageshappa", "email": "prashanth@linux.vnet.ibm.com", "time": "Tue Feb 28 09:43:01 2012 +0530" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Feb 29 18:29:46 2012 -0300" }, "message": "perf probe: Ensure offset provided is not greater than function length without DWARF info too\n\nThe \u0027perf probe\u0027 command allows kprobe to be inserted at any offset from\na function start, which results in adding kprobes to unintended\nlocation. (example: perf probe do_fork+10000 is allowed even though\nsize of do_fork is ~904).\n\nMy previous patch https://lkml.org/lkml/2012/2/24/42 addressed the case\nwhere DWARF info was available for the kernel. This patch fixes the\ncase where perf probe is used on a kernel without debuginfo available.\n\nAcked-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nLink: http://lkml.kernel.org/r/4F4C544D.1010909@linux.vnet.ibm.com\nSigned-off-by: Prashanth Nageshappa \u003cprashanth@linux.vnet.ibm.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "cfbd70c17c4535e64be92ea442a2a45078a18184", "tree": "4c78934457516617938fe62100cb5f4a230874cb", "parents": [ "26b7952494772f0e695271fbd6cf83a852f60f25" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Fri Feb 24 12:31:38 2012 -0700" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Feb 29 18:29:45 2012 -0300" }, "message": "perf tools: Ensure comm string is properly terminated\n\nIf threads in a multi-threaded process have names shorter than the main\nthread the comm for the named threads is not properly terminated.\n\nE.g., for the process \u0027namedthreads\u0027 where each thread is named noploop%d\nwhere %d is the thread number:\n\nBefore:\n perf script -f comm,tid,ip,sym,dso\n noploop:4ads 21616 400a49 noploop (/tmp/namedthreads)\nThe \u0027ads\u0027 in the thread comm bleeds over from the process name.\n\nAfter:\n perf script -f comm,tid,ip,sym,dso\n noploop:4 21616 400a49 noploop (/tmp/namedthreads)\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLink: http://lkml.kernel.org/r/1330111898-68071-1-git-send-email-dsahern@gmail.com\nSigned-off-by: David Ahern \u003cdsahern@gmail.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "26b7952494772f0e695271fbd6cf83a852f60f25", "tree": "168c92dc039cbd205b848c33da7020ea5b02a074", "parents": [ "30e68bcc67e41ab6dab4e4e1efc7ea8ca893c0af" ], "author": { "name": "Prashanth Nageshappa", "email": "prashanth@linux.vnet.ibm.com", "time": "Fri Feb 24 13:11:39 2012 +0530" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Feb 29 18:29:45 2012 -0300" }, "message": "perf probe: Ensure offset provided is not greater than function length\n\nThe perf probe command allows kprobe to be inserted at any offset from a\nfunction start, which results in adding kprobes to unintended location.\n\nExample: perf probe do_fork+10000 is allowed even though size of do_fork\nis ~904.\n\nThis patch will ensure probe addition fails when the offset specified is\ngreater than size of the function.\n\nAcked-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nLink: http://lkml.kernel.org/r/4F473F33.4060409@linux.vnet.ibm.com\nSigned-off-by: Prashanth Nageshappa \u003cprashanth@linux.vnet.ibm.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "30e68bcc67e41ab6dab4e4e1efc7ea8ca893c0af", "tree": "49934bc86d7df5a86311a1123c08f3a389e8b2aa", "parents": [ "30ce2f7eef095d1b8d070740f1948629814fe3c7" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Mon Feb 20 10:47:26 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Feb 29 18:29:44 2012 -0300" }, "message": "perf evlist: Return first evsel for non-sample event on old kernel\n\nOn old kernels that don\u0027t support sample_id_all feature,\nperf_evlist__id2evsel() returns NULL for non-sampling events.\n\nThis breaks perf top when multiple events are given on command line. Fix\nit by using first evsel in the evlist. This will also prevent getting\nthe same (potential) problem in such new tool/ old kernel combo.\n\nSuggested-by: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1329702447-25045-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "6b1bee9035d430c4b4f586df6df4b3f840e89b5b", "tree": "d386e6bd537c7e8c338ec0af1aa9672e1470f233", "parents": [ "dfd3b1e3e8a580bcbf854d46ae0f22c8333e82d8" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Tue Feb 21 15:54:25 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Feb 21 15:05:43 2012 -0200" }, "message": "perf tools: fix broken perf record -a mode\n\nThe following commit:\nb52956c perf tools: Allow multiple threads or processes in record, stat, top\n\nintroduced a bug in the thread_map code which caused perf record -a to\nnot setup system-wide monitoring properly.\n\n$ taskset -c 1 noploop 1000 \u0026\n$ perf record -a -C 1 sleep 10\n$ perf report -D | tail -20\ncycles stats:\n TOTAL events: 4413\n MMAP events: 4025\n COMM events: 340\n SAMPLE events: 48\n\nHere I was expecting about 10,000 samples and not 48.\n\nIn system-wide mode, the PID passed to perf_event_open() must be -1 and\nit was 0. That caused the kernel to setup a per-process event on PID:0.\nConsequently, the number of samples captured does not correspond to the\nrequested measurement.\n\nThe following one-liner fixes the problem for me with or without -C.\n\nI would also suggest to change the malloc() to something that matches\nthe struct definition. thread_map-\u003emap[] is declared as int map[] and\nnot pid_t map[]. If map[] can only contain pids, then change the struct\ndefinition.\n\nAcked-by: David Ahern \u003cdsahern@gmail.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLink: http://lkml.kernel.org/r/20120221145424.GA6757@quad\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "dfd3b1e3e8a580bcbf854d46ae0f22c8333e82d8", "tree": "5490a89961b3d9275429f720ab3150a7377d1ef3", "parents": [ "a5a178e1ae0192e405830f1bba84548992124e88" ], "author": { "name": "Danny Kukawka", "email": "danny.kukawka@bisect.de", "time": "Thu Feb 16 14:54:19 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Feb 17 16:34:09 2012 -0200" }, "message": "perf tools: Remove duplicated string.h includes\n\ntools/perf/util/probe-event.c included \u0027string.h\u0027 twice, remove the\nduplicate.\n\nAcked-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Danny Kukawka \u003cdkukawka@suse.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jovi Zhang \u003cbookjovi@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/r/1329400459-31570-1-git-send-email-danny.kukawka@bisect.de\nSigned-off-by: Danny Kukawka \u003cdanny.kukawka@bisect.de\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "a5a178e1ae0192e405830f1bba84548992124e88", "tree": "0befc4ea59e523ba47d0f1b4ca2732bef64072e9", "parents": [ "09bda4432a8a4d4db2b2b94697abc8d732a9ff73" ], "author": { "name": "Stefan Hajnoczi", "email": "stefanha@linux.vnet.ibm.com", "time": "Sun Sep 04 16:08:59 2011 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Feb 17 16:34:08 2012 -0200" }, "message": "perf tools: Allow expressions in __print_symbolic() fields\n\nThe __print_symbolic() function takes a sequence of key-value pairs for\npretty-printing a constant. The new kvm:kvm_exit print fmt uses the\nexpression:\n\n __print_symbolic(..., { 0x040 + 1, \"DB excp\" }, ...)\n\nCurrently only atoms are supported and this print fmt fails to parse.\nThis patch adds support for expressions instead of just atoms so that\n0x040 + 1 is parsed successfully. Also add arg_num_eval() support for\nthe \u0027+\u0027 operator.\n\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/r/1315148939-14313-1-git-send-email-stefanha@linux.vnet.ibm.com\nSigned-off-by: Stefan Hajnoczi \u003cstefanha@linux.vnet.ibm.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "808e122630d45a7f036d25582474d70548a87e2c", "tree": "96a8d45358110ce48f184d2a62f7816022ff5c1a", "parents": [ "0c9781280fb672ca09c997df3f14ba506bbdb977" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Feb 14 14:18:57 2012 -0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Feb 14 14:18:57 2012 -0200" }, "message": "perf tools: Invert the sample_id_all logic\n\nInstead of requiring that users of perf_record_opts set\n.sample_id_all_avail to true, just invert the logic, using\n.sample_id_all_missing, that doesn\u0027t need to be explicitely initialized\nsince gcc will zero members ommitted in a struct initialization.\n\nJust like the newly introduced .exclude_{guest,host} feature test.\n\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-ab772uzk78cwybihf0vt7kxw@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "0c9781280fb672ca09c997df3f14ba506bbdb977", "tree": "c69f428b2717025d5afb2a8997d82ff9a4b8aea1", "parents": [ "7e1ccd3804281fc0755eb726b654469c40a96d89" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Feb 14 14:05:30 2012 -0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Feb 14 14:05:30 2012 -0200" }, "message": "perf tools: Handle kernels that don\u0027t support attr.exclude_{guest,host}\n\nJust fall back to resetting those fields, if set, warning the user that\nthat feature is not available.\n\nIf guest samples appear they will just be discarded because no struct\nmachine will be found and thus the event will be accounted as not\nhandled and dropped, see 0c09571.\n\nReported-by: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nTested-by: Joerg Roedel \u003cjoerg.roedel@amd.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Joerg Roedel \u003cjoerg.roedel@amd.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-vuwxig36mzprl5n7nzvnxxsh@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "7e1ccd3804281fc0755eb726b654469c40a96d89", "tree": "dd262703dfc95983c4a8308b5f40fb41b404a1a6", "parents": [ "f1c67db7e351bf9fd328e368ba045cbeca11d513" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Feb 09 16:12:38 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Feb 13 23:35:04 2012 -0200" }, "message": "perf tools: cleanup initialization of attr-\u003esize\n\nThe perf_event_attr size needs to be initialized in all cases because it\ncaptures the ABI version.\n\nThis patch moves the initialization of the field from the\nperf_event_open() syscall stub to its proper location in the\nevent_attr_init().\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLink: http://lkml.kernel.org/r/20120209151238.GA10272@quad\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "f1c67db7e351bf9fd328e368ba045cbeca11d513", "tree": "f5992c509c655873da19c995b740ce89b60a216f", "parents": [ "08d95bd256277f914e525aeb292da52f15173e7d" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Feb 10 15:41:56 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Feb 13 23:33:36 2012 -0200" }, "message": "perf tools: Factor out feature op to process header sections\n\nThere is individual code for each feature to process header sections.\n\nAdding a function pointer .process to struct feature_ops for keeping the\nimplementation in separate functions. Code to process header sections is\nnow a generic function.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nLink: http://lkml.kernel.org/r/1328884916-5901-2-git-send-email-robert.richter@amd.com\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "08d95bd256277f914e525aeb292da52f15173e7d", "tree": "02899bd6300d18e44995736a31091b9c3ac1a811", "parents": [ "850f8127fa3666737881aecb3b16e8ede85e58f4" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Feb 10 15:41:55 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Feb 13 23:32:32 2012 -0200" }, "message": "perf tools: Moving code in header.c\n\nNeeded for later changes. No modified functionality.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nLink: http://lkml.kernel.org/r/1328884916-5901-1-git-send-email-robert.richter@amd.com\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "850f8127fa3666737881aecb3b16e8ede85e58f4", "tree": "387aa036ac483a3b33e86d3a6388eaf6c3373c9b", "parents": [ "e90fda0635401225ca7c2343bea2f6d279347d10" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Jan 27 15:34:23 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Feb 13 23:28:10 2012 -0200" }, "message": "perf tools: Add bitmap_or function into bitmap object\n\nAdding implementation os bitmap_or function to the bitmap object. It is\nstolen from the kernel lib/bitmap.o object.\n\nIt is used in upcomming patches.\n\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1327674868-10486-5-git-send-email-jolsa@redhat.com\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "e90fda0635401225ca7c2343bea2f6d279347d10", "tree": "d87047ae41bacd526c7658572372f86fbd572df1", "parents": [ "2837609fefbfe8f1248bfce09d9f0b44d5eb713d" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Jan 27 15:34:22 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Feb 13 23:27:15 2012 -0200" }, "message": "perf tools: Add sysfs mountpoint interface\n\nAdding sysfs object to provide sysfs mount information in the same way\nas debugfs object does.\n\nThe object provides following function:\n sysfs_find_mountpoint\n\nwhich returns the sysfs mount mount.\n\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1327674868-10486-4-git-send-email-jolsa@redhat.com\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "2837609fefbfe8f1248bfce09d9f0b44d5eb713d", "tree": "b4fb421b4bb7944008e1657af132a1d89178e7cf", "parents": [ "e334c726ca774d346cb7c4db487e80953a202b58" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Jan 27 15:34:21 2012 +0100" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Feb 13 23:25:38 2012 -0200" }, "message": "perf tools: Remove unused functions from debugfs object\n\nFollowing debugfs object functions are not referenced\nwithin the code:\n\n int debugfs_valid_entry(const char *path);\n int debugfs_umount(void);\n int debugfs_write(const char *entry, const char *value);\n int debugfs_read(const char *entry, char *buffer, size_t size);\n void debugfs_force_cleanup(void);\n int debugfs_make_path(const char *element, char *buffer, int size);\n\nRemoving them.\n\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1327674868-10486-3-git-send-email-jolsa@redhat.com\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "e334c726ca774d346cb7c4db487e80953a202b58", "tree": "080d105278a9fcf322b08e2d081ffed857d86a2f", "parents": [ "3bd2b8d1095d41254d3bdc3d62622c7fd5e143b8" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Feb 10 10:10:17 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Feb 13 23:22:50 2012 -0200" }, "message": "perf tools: Get rid of ctype.h in symbol.c\n\nThe ctype.h in symbol.c was needed because of isupper(). However we now\nhave it in util.h, it can be changed to use our implementation.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1328836217-9118-3-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "3bd2b8d1095d41254d3bdc3d62622c7fd5e143b8", "tree": "8c39ba3730cc7015e0aa684b3917613ea5d06fa9", "parents": [ "2cd13b0f7dd3a5df68ff4cd82af2e1f7bc2a43ab" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Fri Feb 10 10:10:16 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Feb 13 23:17:40 2012 -0200" }, "message": "perf tools: ctype.c only wants util.h\n\nThe implementation of sane ctype macros only depends on symbols in\nutil.h not cache.h.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1328836217-9118-2-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" } ], "next": "2cd13b0f7dd3a5df68ff4cd82af2e1f7bc2a43ab" }