)]}' { "log": [ { "commit": "c0c463d34adf0c150e5e24fa412fa23f3f7ddc27", "tree": "dfdf2ee7c6bb6662e8aa750c9145618085b092fd", "parents": [ "e72542191cbba4cf7fda21cb22e26b42d7415daf", "a03fc8c375511b6ab43184ab191af3218a919646", "f505c553dbe24b18a8590eb0eb5890a839acd0c3", "a7de915383a6d5c05663f9badbd10d5a87bc1586", "08a4a43fc407d780bdde36d98f89c0dbb2a6be6b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 23 10:33:08 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 23 10:33:08 2011 -0700" }, "message": "Merge branches \u0027x86-urgent-for-linus\u0027, \u0027core-debug-for-linus\u0027, \u0027irq-core-for-linus\u0027 and \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027x86-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n um: Make rwsem.S depend on CONFIG_RWSEM_XCHGADD_ALGORITHM\n\n* \u0027core-debug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n debug: Make CONFIG_EXPERT select CONFIG_DEBUG_KERNEL to unhide debug options\n\n* \u0027irq-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n genirq: Remove unused CHECK_IRQ_PER_CPU()\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf tools, x86: Fix 32-bit compile on 64-bit system\n" }, { "commit": "08a4a43fc407d780bdde36d98f89c0dbb2a6be6b", "tree": "2ec7649b3a6423d633508f1a293920d8f5ee8665", "parents": [ "cf6ace16a3cd8b728fb0afa68368fd40bbeae19f" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Mon Jul 11 15:38:24 2011 -0600" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 21 13:42:30 2011 +0200" }, "message": "perf tools, x86: Fix 32-bit compile on 64-bit system\n\nBuilds for 32-bit perf binaries on a 64-bit host currently fail\nwith this error:\n\n [...]\n bench/../../../arch/x86/lib/memcpy_64.S: Assembler messages:\n bench/../../../arch/x86/lib/memcpy_64.S:29: Error: bad register name `%rdi\u0027\n bench/../../../arch/x86/lib/memcpy_64.S:34: Error: invalid instruction suffix for `movs\u0027\n bench/../../../arch/x86/lib/memcpy_64.S:50: Error: bad register name `%rdi\u0027\n bench/../../../arch/x86/lib/memcpy_64.S:61: Error: bad register name `%rdi\u0027\n ...\n\nThe problem is the detection of the host arch without considering passed in\nflags. This change fixes 32-bit builds via:\n\nmake EXTRA_CFLAGS\u003d-m32\n\nand 64-bit builds still reference the memcpy_64.S.\n\nSigned-off-by: David Ahern \u003cdsahern@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: \u003cstable@kernel.org\u003e\nLink: http://lkml.kernel.org/r/1310420304-21452-1-git-send-email-dsahern@gmail.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "baf040a0d1ac6319725c0fe400503683ac016580", "tree": "7491f6dbaf6d26017cbf9a0ec0428f8c90619530", "parents": [ "13b62567e909125145f90e91625b1062196d1258" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Jul 14 11:25:34 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 21 10:41:14 2011 +0200" }, "message": "perf tools: Make test use the preset debugfs path\n\nUse preset debugfs path instead of hardcoded one.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: acme@redhat.com\nCc: a.p.zijlstra@chello.nl\nCc: paulus@samba.org\nLink: http://lkml.kernel.org/r/1310635534-4013-4-git-send-email-jolsa@redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "13b62567e909125145f90e91625b1062196d1258", "tree": "1a8ad571b39ad97fdae1db6a33753ee94de21747", "parents": [ "f120f9d51be3a7db8991e7b78dc08bab5f8ab8f3" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Jul 14 11:25:33 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 21 10:41:13 2011 +0200" }, "message": "perf tools: Add automated tests for events parsing\n\nAdding builtin test for parse_events function, which is\nresponsible for parsing/processing \"-e\" option for\nstat/top/record commands.\n\nThis new test will run within the builtin test command suite\n(perf test).\n\nOne or several tests were added for each type of event.\nMore tests could be added easily if needed.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: acme@redhat.com\nCc: a.p.zijlstra@chello.nl\nCc: paulus@samba.org\nLink: http://lkml.kernel.org/r/1310635534-4013-3-git-send-email-jolsa@redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f120f9d51be3a7db8991e7b78dc08bab5f8ab8f3", "tree": "237926a6231f4009015b8ce4119935a455069395", "parents": [ "adc4bf9955856f8aa081ba613dbf56ffd664f0b7" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Thu Jul 14 11:25:32 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 21 10:41:11 2011 +0200" }, "message": "perf tools: De-opt the parse_events function\n\nMoving out the option parameter from parse_events function,\nand adding new parse_events_option function instead.\n\nThe option parameter is used only to carry \"struct perf_evlist\"\npointer for chaining new events. Putting it away, enable us\nto call parse_events from other places without using the\noption parameter.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: acme@redhat.com\nCc: a.p.zijlstra@chello.nl\nCc: paulus@samba.org\nLink: http://lkml.kernel.org/r/1310635534-4013-2-git-send-email-jolsa@redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "adc4bf9955856f8aa081ba613dbf56ffd664f0b7", "tree": "c110522a1a45d95b3452987e141d383ffd9ac81a", "parents": [ "eda3913bb70ecebac13adccffe1e7f96e93cee02" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Mon May 30 09:16:27 2011 -0600" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 21 10:09:28 2011 +0200" }, "message": "perf script: Fix display of IP address for non-callchain path\n\nNon-callchain path is using al.addr which prints as:\n openssl 14564 17672.003587: 7862d _x86_64_AES_encrypt_compact\n\nThis should be sample-\u003eip to print as:\n openssl 14564 17672.003587: 3f7867862d _x86_64_AES_encrypt_compact\n\nSigned-off-by: David Ahern \u003cdsahern@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: acme@ghostprotocols.net\nCc: peterz@infradead.org\nCc: paulus@samba.org\nLink: http://lkml.kernel.org/r/1306768587-15376-1-git-send-email-dsahern@gmail.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eda3913bb70ecebac13adccffe1e7f96e93cee02", "tree": "832f84f625dcfcf30eeb0ca88d58fe7774f4327e", "parents": [ "0111919da268e1ced315e009ad0d0435a2fb32ac" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Fri Jul 15 12:34:09 2011 -0600" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 21 09:57:36 2011 +0200" }, "message": "perf tools: Fix endian conversion reading event attr from file header\n\nThe perf_event_attr struct has two __u32\u0027s at the top and\nthey need to be swapped individually.\n\nWith this change I was able to analyze a perf.data collected in a\n32-bit PPC VM on an x86 system. I tested both 32-bit and 64-bit\nbinaries for the Intel analysis side; both read the PPC perf.data\nfile correctly.\n\n-v2:\n - changed the existing perf_event__attr_swap() to swap only elements\n of perf_event_attr and exported it for use in swapping the\n attributes in the file header\n - updated swap_ops used for processing events\n\nSigned-off-by: David Ahern \u003cdsahern@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: acme@ghostprotocols.net\nCc: peterz@infradead.org\nCc: paulus@samba.org\nCc: \u003cstable@kernel.org\u003e\nLink: http://lkml.kernel.org/r/1310754849-12474-1-git-send-email-dsahern@gmail.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0111919da268e1ced315e009ad0d0435a2fb32ac", "tree": "41a9f36b810820df712b6cb5e1c222891b2f972c", "parents": [ "40bcea7bbe8fe452a2d272e2ffd3dea281eec9ff" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Wed Jul 13 22:58:18 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 21 09:54:51 2011 +0200" }, "message": "perf tools: Add missing \u0027node\u0027 alias to the hw_cache[] array\n\nAdd \"node\" as a simple alias for NODE cache events.\n\nThe addition of NODE cache events broke the parse_alias\nfunction, so any mismatched event caused the segfault, like:\n\n # ./perf stat -e krava ls\n\nThe hw_cache/hw_cache_op/hw_cache_result arrays needs to follow\nPERF_COUNT_HW_CACHE_*MAX enums. Adding those MAXs to be size\nof those arrays, so possible ommision in future wil not lead to\nsegfault.\n\nAdding read/write/prefetch as allowed operations for node cache\nevent.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: acme@redhat.com\nLink: http://lkml.kernel.org/r/20110713205818.GB7827@jolsa.brq.redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "14a8fd7ceea6915c613746203d6e9a2bf273f16c", "tree": "738803bc847efa3a17e9076922f06ceaca20d8f0", "parents": [ "190b57fcb9c5fed5414935a174094f534fc510bc" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Mon Jun 27 16:27:51 2011 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jul 15 16:25:12 2011 -0400" }, "message": "perf probe: Support adding probes on offline kernel modules\n\nSupport adding probes on offline kernel modules. This enables\nperf-probe to trace kernel-module init functions via perf-probe.\nIf user gives the path of module with -m option, perf-probe\nexpects the module is offline.\nThis feature works with --add, --funcs, and --vars.\n\nE.g)\n # perf probe -m /lib/modules/`uname -r`/kernel/fs/btrfs/btrfs.ko \\\n -a \"extent_io_init:5 extent_state_cache\"\n Add new events:\n probe:extent_io_init (on extent_io_init:5 with extent_state_cache)\n probe:extent_io_init_1 (on extent_io_init:5 with extent_state_cache)\n\n You can now use it on all perf tools, such as:\n\n perf record -e probe:extent_io_init_1 -aR sleep 1\n\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nLink: http://lkml.kernel.org/r/20110627072751.6528.10230.stgit@fedora15\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "190b57fcb9c5fed5414935a174094f534fc510bc", "tree": "952c19ed78abe454715d357fd5d0f8c6af9efd55", "parents": [ "ff741783506c340035659a71be68ddb4068760d1" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Mon Jun 27 16:27:45 2011 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jul 15 16:19:08 2011 -0400" }, "message": "perf probe: Add probed module in front of function\n\nAdd probed module name and \":\" in front of function name\nif -m module option is given. In the result, the symbol\nname passed to kprobe-tracer becomes MODULE:FUNCTION,\nso that kallsyms can solve it as a symbol in the module\ncorrectly.\n\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nLink: http://lkml.kernel.org/r/20110627072745.6528.26416.stgit@fedora15\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ff741783506c340035659a71be68ddb4068760d1", "tree": "90ccff5203ae54e738ab98d6a73f88fa5bc5a5b1", "parents": [ "e0d153c69040bb37cbdf09deb52fee3013c07742" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Mon Jun 27 16:27:39 2011 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jul 15 16:14:19 2011 -0400" }, "message": "perf probe: Introduce debuginfo to encapsulate dwarf information\n\nIntroduce debuginfo to encapsulate dwarf information.\nThis new object allows us to reuse and expand debuginfo easily.\n\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nLink: http://lkml.kernel.org/r/20110627072739.6528.12438.stgit@fedora15\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e0d153c69040bb37cbdf09deb52fee3013c07742", "tree": "e008ba8ac1f328b6938e80b9208d64c4548f8e8e", "parents": [ "bcfc082150c6b1e9443c1277bca8be80094150b5" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Mon Jun 27 16:27:27 2011 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jul 15 16:10:17 2011 -0400" }, "message": "perf-probe: Move dwarf library routines to dwarf-aux.{c, h}\n\nMove dwarf library related routines to dwarf-aux.{c,h}.\nThis includes several minor changes.\n- Add simple documents for each API.\n- Rename die_find_real_subprogram() to die_find_realfunc()\n- Rename line_walk_handler_t to line_walk_callback_t.\n- Minor cleanups.\n\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nLink: http://lkml.kernel.org/r/20110627072727.6528.57647.stgit@fedora15\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "bcfc082150c6b1e9443c1277bca8be80094150b5", "tree": "fcb522f8c9bd2ab926065cfb9799defbddb4353b", "parents": [ "bad03ae476214d9d66bb96be02b630385936f788" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Mon Jun 27 16:27:21 2011 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jul 15 16:04:47 2011 -0400" }, "message": "perf probe: Remove redundant dwarf functions\n\nSince there are dwarf_bitsize, dwarf_bitoffset and dwarf_bytesize\ndefined in libdw, we don\u0027t need die_get_bit_size, die_get_bit_offset\nand die_get_byte_size anymore.\n\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nLink: http://lkml.kernel.org/r/20110627072721.6528.2747.stgit@fedora15\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "bad03ae476214d9d66bb96be02b630385936f788", "tree": "91f1273f08104fb457b436141de431f1fc6e5b7c", "parents": [ "baad2d3e69ba154dae340904a47ae12414f1894f" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Mon Jun 27 16:27:15 2011 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jul 15 16:00:47 2011 -0400" }, "message": "perf probe: Move strtailcmp to string.c\n\nSince strtailcmp() is enough generic, it should be defined in string.c.\n\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nLink: http://lkml.kernel.org/r/20110627072715.6528.10677.stgit@fedora15\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "baad2d3e69ba154dae340904a47ae12414f1894f", "tree": "c755b2695300cd8f99ef9d2d570cf85cc1ea2661", "parents": [ "7f6878a3d707b947603e09d95df0c3a98987e3a4" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Mon Jun 27 16:27:09 2011 +0900" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jul 15 15:55:57 2011 -0400" }, "message": "perf probe: Rename DIE_FIND_CB_FOUND to DIE_FIND_CB_END\n\nSince die_find/walk* callbacks use DIE_FIND_CB_FOUND for\nboth of failed and found cases, it should be \"END\"\ninstead \"FOUND\" for avoiding confusion.\n\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nReported-by: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nLink: http://lkml.kernel.org/r/20110627072709.6528.45706.stgit@fedora15\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "259032bfe379281bf7cba512b7705bdb4ce41db5", "tree": "56c656f3ecb9779e70f6c9a3ad1db68a7a38a6ca", "parents": [ "6331c28c962561aee59e5a493b7556a4bb585957" ], "author": { "name": "Sonny Rao", "email": "sonnyrao@chromium.org", "time": "Thu Jul 14 13:34:43 2011 +1000" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Jul 14 15:53:01 2011 -0400" }, "message": "perf: Robustify proc and debugfs file recording\n\nWhile attempting to create a timechart of boot up I found perf didn\u0027t\ntolerate modules being loaded/unloaded. This patch fixes this by\nreading the file once and then writing the size read at the correct\npoint in the file. It also simplifies the code somewhat.\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nSigned-off-by: Sonny Rao \u003csonnyrao@chromium.org\u003e\nSigned-off-by: Michael Neuling \u003cmikey@neuling.org\u003e\nLink: http://lkml.kernel.org/r/10011.1310614483@neuling.org\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "5d67be97f8903d05ce53597fb5f3bc25a45e8026", "tree": "5ce8c2407d50570d7fee79b9c7f24e8eb89384b4", "parents": [ "9f8b6a6cf0ee78de87ebe1e87f54bec1c1741ef7" ], "author": { "name": "Anton Blanchard", "email": "anton@samba.org", "time": "Mon Jul 04 21:57:50 2011 +1000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jul 05 10:44:44 2011 +0200" }, "message": "perf report/annotate/script: Add option to specify a CPU range\n\nAdd an option to perf report/annotate/script to specify which\nCPUs to operate on. This enables us to take a single system wide\nprofile and analyse each CPU (or group of CPUs) in isolation.\n\nThis was useful when profiling a multiprocess workload where the\nbottleneck was on one CPU but this was hidden in the overall\nprofile. Per process and per thread breakdowns didn\u0027t help\nbecause multiple processes were running on each CPU and no\nsingle process consumed an entire CPU.\n\nThe patch converts the list of CPUs returned by cpu_map__new\ninto a bitmap for fast lookup. I wanted to use -C to be\nconsistent with perf top/record/stat, but unfortunately perf\nreport already uses -C \u003ccomms\u003e.\n\n v2: Incorporate suggestions from David Ahern:\n\t- Added -c to perf script\n\t- Check that SAMPLE_CPU is set when -c is used\n\t- Update documentation\n\n v3: Create perf_session__cpu_bitmap()\n\nSigned-off-by: Anton Blanchard \u003canton@samba.org\u003e\nAcked-by: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLink: http://lkml.kernel.org/r/20110704215750.11647eb9@kryten\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3ae9a34d747f9abf2bcc85dc0e77b951513ccdf2", "tree": "592baba4f60e156f9b0d596ade75e282ea21f1ab", "parents": [ "343a031f3c4a7a663192cf56368bb5a6c56870c0" ], "author": { "name": "Zhengyu He", "email": "zhengyuh@google.com", "time": "Thu Jun 23 13:45:42 2011 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 01 12:52:40 2011 +0200" }, "message": "perf stat: Add noise output for csv mode\n\nPreviously, when you want perf-stat to output the statistics in\ncsv mode, no information of the noise will be printed out.\n\nFor example right now we output this --repeat information:\n\n ./perf stat -r3 -x, sleep 1\n 1.164789,task-clock\n 8,context-switches\n 0,CPU-migrations\n 219,page-faults\n 3337800,cycles\n\nWith this patch, the output will be appended with an additional\nentry for the noise value:\n\n ./perf stat -r3 -x, sleep 1\n 1.164789,task-clock,3.75%\n 8,context-switches,75.00%\n 0,CPU-migrations,100.00%\n 219,page-faults,0.00%\n 3337800,cycles,3.36%\n\nSigned-off-by: Zhengyu He \u003czhengyuh@google.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLink: http://lkml.kernel.org/r/1308861942-4945-1-git-send-email-zhengyuh@google.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "343a031f3c4a7a663192cf56368bb5a6c56870c0", "tree": "ee6c7fddf5de92f64f3759694cc6a4b7c28fa80a", "parents": [ "26ca5c11fb45ae2b2ac7e3574b8db6b3a3c7d350", "cb1955b86c86782ff20037da42ef030057501c34" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 01 11:51:58 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 01 11:51:58 2011 +0200" }, "message": "Merge branch \u0027perf/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core\n" }, { "commit": "10e6962765f8213941eaa1cbb9de425ff0689e2e", "tree": "c277e4ac5b2b7156152454578c39e90da5127dd8", "parents": [ "af07ce3e77d3b24ab1d71fcc5833d41800f23b2b", "b0af8dfdd67699e25083478c63eedef2e72ebd85" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 01 10:28:42 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 01 10:28:46 2011 +0200" }, "message": "Merge commit \u0027v3.0-rc5\u0027 into perf/core\n\nMerge reason: Pick up the latest fixes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cb1955b86c86782ff20037da42ef030057501c34", "tree": "4d4ed06f8ec32ddc4a47259d82fa470673cdf510", "parents": [ "fd8ea21276adefc7f0133bd42fcf3b2faf0b15f8" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jun 29 23:52:52 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jun 30 00:26:49 2011 +0200" }, "message": "perf tools: Only display parent field if explictly sorted\n\nWe don\u0027t need to display the parent field if the parent\nsorting machinery is only used for parent filtering\n(as in \"-p foo\").\n\nHowever if parent filtering is used in combination with\nexplicit parent sorting ( -s parent), we want to\ndisplay it.\n\nResult with:\n\n perf report -p kernel_thread -s parent\n\nBefore:\n\n # Overhead Parent symbol\n # ........ .............\n #\n 0.07%\n |\n --- ioread8\n ata_sff_check_status\n ata_sff_tf_load\n ata_sff_qc_issue\n ata_bmdma_qc_issue\n ata_qc_issue\n ata_scsi_translate\n ata_scsi_queuecmd\n scsi_dispatch_cmd\n scsi_request_fn\n __blk_run_queue\n __make_request\n generic_make_request\n submit_bio\n submit_bh\n journal_submit_commit_record\n jbd2_journal_commit_transaction\n kjournald2\n kthread\n kernel_thread_helpe\n\nAfter:\n\n # Overhead Parent symbol\n # ........ .............\n #\n 0.07% kernel_thread_helper\n |\n --- ioread8\n ata_sff_check_status\n ata_sff_tf_load\n ata_sff_qc_issue\n ata_bmdma_qc_issue\n ata_qc_issue\n ata_scsi_translate\n ata_scsi_queuecmd\n scsi_dispatch_cmd\n scsi_request_fn\n __blk_run_queue\n __make_request\n generic_make_request\n submit_bio\n submit_bh\n journal_submit_commit_record\n jbd2_journal_commit_transaction\n kjournald2\n kthread\n kernel_thread_helper\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Sam Liao \u003cphyomh@gmail.com\u003e\n" }, { "commit": "fd8ea21276adefc7f0133bd42fcf3b2faf0b15f8", "tree": "7d4025ed1c68162f118bc29005ac76f0e9ea8dd8", "parents": [ "e84d21227c6865fe1f3d0c79d1539b6877f54c84" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jun 29 23:08:14 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jun 30 00:26:41 2011 +0200" }, "message": "perf tools: Allow sort dimensions to be registered more than once\n\nSo that the parent sort dimension can be registered twice: once\nif we add it as an explicit sort dimension (-s parent) and twice\nif we request a parent filter (-p foo).\n\nWe\u0027ll have only one parent sort dimension in the end but this\nallows to override the default parent filter with we gave in \"-p\"\noption. The goal of this is to prepare to allow the use of\n\"-s parent\" and \"-p foo\" at the same time, ie: sort by filtered\nparent.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Sam Liao \u003cphyomh@gmail.com\u003e\n" }, { "commit": "e84d21227c6865fe1f3d0c79d1539b6877f54c84", "tree": "51890e149dc9946b8300c38bfb1ebc1a643bfd85", "parents": [ "2fd701bc782fad8792059dd586e1f00b64f6a52e" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jun 29 22:23:03 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jun 30 00:26:33 2011 +0200" }, "message": "perf tools: Don\u0027t display ignored entries on stdio ui\n\nAs for newt ui, don\u0027t display entries that have been marked\nas ignored.\n\nThe practical current effect of this is to make parent\nfiltering really working. Before, entries that were ignored\nwere given a null parent but were still displayed. This\nresulted in some weird effects:\n\n # Overhead Command Shared Object Symbol\n # ........ ........... ................. ............\n #\n^A\n |\n --- __lock_acquire\n |\n |--95.97%-- lock_acquire\n | |\n | |--30.75%-- _raw_spin_lock\n\nDiscard these from the stdio display.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Sam Liao \u003cphyomh@gmail.com\u003e\n" }, { "commit": "2fd701bc782fad8792059dd586e1f00b64f6a52e", "tree": "5ed938913571fd1052814f490333db26aed5e421", "parents": [ "872a878fb1ee53e21c90040de2c01b3fc53b5942" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jun 29 03:25:14 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jun 30 00:26:19 2011 +0200" }, "message": "perf tools: Remove sort print helpers declarations\n\nThese are probably some old leftovers.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Sam Liao \u003cphyomh@gmail.com\u003e\n" }, { "commit": "872a878fb1ee53e21c90040de2c01b3fc53b5942", "tree": "1ee4c10d94e9946a6c8b35a5515fe4feab976a0d", "parents": [ "d797fdc5c5c245fbb05f553e68cb95d962fbdd01" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jun 29 03:14:52 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jun 30 00:25:12 2011 +0200" }, "message": "perf tools: Make sort operations static\n\nThese don\u0027t need to be globally visible.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nCc: Sam Liao \u003cphyomh@gmail.com\u003e\n" }, { "commit": "d797fdc5c5c245fbb05f553e68cb95d962fbdd01", "tree": "aa28d98f61df71a2fba55e2b4b526c77aec8de0a", "parents": [ "af07ce3e77d3b24ab1d71fcc5833d41800f23b2b" ], "author": { "name": "Sam Liao", "email": "phyomh@gmail.com", "time": "Tue Jun 07 23:49:46 2011 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jun 30 00:24:30 2011 +0200" }, "message": "perf tools: Add inverted call graph report support.\n\nAdd \"caller/callee\" option to support inverted butterfly report,\nin the inverted report (with caller option), the call graph start\nfrom the callee\u0027s ancestor. Users can use such view to catch system\u0027s\nperformance bottleneck from a sysprof like view. Using this option\nwith specified sort order like pid gives us high level view of call\ngraph statistics.\n\nAlso add \"-G\" alias for inverted call graph.\n\nSigned-off-by: Sam Liao \u003cphyomh@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Ahern \u003cdsahern@gmail.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "8816ead9d8e7c2745788e0684797e1912b504f33", "tree": "2a619a821024d31be2ce6ff422f287792379fe5b", "parents": [ "357ed6b1a110048ff8106f99092d6c4a7aadb45a", "203db2952bc87f5d610c9ad53a7d02b85897721f", "d8ad7d1123a960cc9f276bd499f9325c6f5e1bd1", "b5199515c25cca622495eb9c6a8a1d275e775088", "c1f5c54b57341e872a9d375dccef7257f86033ef" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jun 19 09:00:18 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jun 19 09:00:18 2011 -0700" }, "message": "Merge branches \u0027perf-urgent-for-linus\u0027, \u0027sched-urgent-for-linus\u0027, \u0027timers-urgent-for-linus\u0027 and \u0027x86-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n tools/perf: Fix static build of perf tool\n tracing: Fix regression in printk_formats file\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n generic-ipi: Fix kexec boot crash by initializing call_single_queue before enabling interrupts\n\n* \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n clocksource: Make watchdog robust vs. interruption\n timerfd: Fix wakeup of processes when timer is cancelled on clock change\n\n* \u0027x86-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86, MAINTAINERS: Add x86 MCE people\n x86, efi: Do not reserve boot services regions within reserved areas\n" }, { "commit": "357ed6b1a110048ff8106f99092d6c4a7aadb45a", "tree": "ff4eb7e809e547bc3c0680dfd51793a8f57b2063", "parents": [ "de505e709ffb09a7382ca8e0d8c7dbb171ba5830", "f8b7fc6b514f34a51875dd48dff70d4d17a54f38" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jun 19 08:56:56 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jun 19 08:56:56 2011 -0700" }, "message": "Merge branch \u0027core-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n rcu: Move RCU_BOOST #ifdefs to header file\n rcu: use softirq instead of kthreads except when RCU_BOOST\u003dy\n rcu: Use softirq to address performance regression\n rcu: Simplify curing of load woes\n" }, { "commit": "7cc2ed05891f424c2e323bc1a368ddb5c78b90f2", "tree": "db628f2dcbb51c0fe9ce15da5897c4ea1404be9f", "parents": [ "8dac6bee32425dd5145b40fa2307648cb7fb4d4a", "569658dddf276ceb0780776e7f5d61d9f8d8cb88" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 16 10:26:58 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 16 10:26:58 2011 -0700" }, "message": "Merge branch \u0027rc-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6\n\n* \u0027rc-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:\n kbuild: Call depmod.sh via shell\n perf: clear out make flags when calling kernel make kernelver\n" }, { "commit": "b4f9f2b64aa189c5584f266f4f0343af7a705441", "tree": "f410718bb93590ff61682b566c10f70d5883bbcd", "parents": [ "76369139ceb955deefc509e6e12ce9d6ce50ccab", "2c53b436a30867eb6b47dd7bab23ba638d1fb0d2" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jun 16 13:23:15 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jun 16 13:23:22 2011 +0200" }, "message": "Merge commit \u0027v3.0-rc3\u0027 into perf/core\n\nMerge reason: add the latest fixes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "203db2952bc87f5d610c9ad53a7d02b85897721f", "tree": "215302011c4fa0669e1856466dc077bf9245f0fa", "parents": [ "afbee42706090fa59dac299c9607e4fd4361ec82" ], "author": { "name": "Mathias Krause", "email": "minipli@googlemail.com", "time": "Wed Jun 15 23:03:38 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jun 16 10:17:39 2011 +0200" }, "message": "tools/perf: Fix static build of perf tool\n\nTo build a statically linked version of the perf tool all needed\nlibraries must be added in the correct order to get the symbols\nresolved. Currently this is broken when, e.g. python or newt\nsupport is enabled -- libpython needs libpthread which is an\nunconditional link dependency of the perf tool; libslang needs\nlibm, another unconditional dependency. To solve the problem in\nthe long run without the need to keep track of transitive\nlibrary dependencies, simply make the linker look at the EXTLIBS\nmultiple times until it has all symbols resolved.\n\nSigned-off-by: Mathias Krause \u003cminipli@googlemail.com\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/1308171818-20370-1-git-send-email-minipli@googlemail.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "37aa9a2eb4d9b1a4aec1fd18bb2bb6bca029de27", "tree": "548a93ad0b76c121bf74471b67f638fda3bbc3c0", "parents": [ "5d61b9fd19d9f3cf653dbba615876e7792eea5ea" ], "author": { "name": "Andy Whitcroft", "email": "apw@canonical.com", "time": "Wed Jun 15 14:35:00 2011 +0100" }, "committer": { "name": "Michal Marek", "email": "mmarek@suse.cz", "time": "Wed Jun 15 22:12:55 2011 +0200" }, "message": "perf: clear out make flags when calling kernel make kernelver\n\nWhen generating the perf version from the kernel version using \u0027make\nkernelver\u0027 it is necessary to clear out any MAKEFLAGS otherwise they may\ntrigger additional output which pollute the contents.\n\nSigned-off-by: Andy Whitcroft \u003capw@canonical.com\u003e\nSigned-off-by: Michal Marek \u003cmmarek@suse.cz\u003e\n" }, { "commit": "09223371deac67d08ca0b70bd18787920284c967", "tree": "0ad0354a93ac209c8cfd2b79d03d0462aa3c5c58", "parents": [ "9a432736904d386cda28b987b38ba14dae960ecc" ], "author": { "name": "Shaohua Li", "email": "shaohua.li@intel.com", "time": "Tue Jun 14 13:26:25 2011 +0800" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Jun 14 15:25:39 2011 -0700" }, "message": "rcu: Use softirq to address performance regression\n\nCommit a26ac2455ffcf3(rcu: move TREE_RCU from softirq to kthread)\nintroduced performance regression. In an AIM7 test, this commit degraded\nperformance by about 40%.\n\nThe commit runs rcu callbacks in a kthread instead of softirq. We observed\nhigh rate of context switch which is caused by this. Out test system has\n64 CPUs and HZ is 1000, so we saw more than 64k context switch per second\nwhich is caused by RCU\u0027s per-CPU kthread. A trace showed that most of\nthe time the RCU per-CPU kthread doesn\u0027t actually handle any callbacks,\nbut instead just does a very small amount of work handling grace periods.\nThis means that RCU\u0027s per-CPU kthreads are making the scheduler do quite\na bit of work in order to allow a very small amount of RCU-related\nprocessing to be done.\n\nAlex Shi\u0027s analysis determined that this slowdown is due to lock\ncontention within the scheduler. Unfortunately, as Peter Zijlstra points\nout, the scheduler\u0027s real-time semantics require global action, which\nmeans that this contention is inherent in real-time scheduling. (Yes,\nperhaps someone will come up with a workaround -- otherwise, -rt is not\ngoing to do well on large SMP systems -- but this patch will work around\nthis issue in the meantime. And \"the meantime\" might well be forever.)\n\nThis patch therefore re-introduces softirq processing to RCU, but only\nfor core RCU work. RCU callbacks are still executed in kthread context,\nso that only a small amount of RCU work runs in softirq context in the\ncommon case. This should minimize ksoftirqd execution, allowing us to\nskip boosting of ksoftirqd for CONFIG_RCU_BOOST\u003dy kernels.\n\nSigned-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\nTested-by: \"Alex,Shi\" \u003calex.shi@intel.com\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\n" }, { "commit": "6aecceccf5aa626b0af203e54ca62cbf308c53d8", "tree": "5d4889d531c1a92b38a36ea7a8d4f4e40252082d", "parents": [ "dfb863a714b81848504d3b73ca0ecae90b91cbc0", "5d61b9fd19d9f3cf653dbba615876e7792eea5ea" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 09 16:27:42 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 09 16:27:42 2011 -0700" }, "message": "Merge branch \u0027rc-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6\n\n* \u0027rc-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:\n perf: Use make kernelversion instead of parsing the Makefile\n kbuild: Hack for depmod not handling X.Y versions\n kbuild: Move depmod call to a separate script\n kbuild: Fix \u003clinux/version.h\u003e for empty SUBLEVEL or PATCHLEVEL\n kbuild: Fix KERNELVERSION for empty SUBLEVEL or PATCHLEVEL\n kbuild: silence Nothing to be done for \u0027all\u0027 message\n" }, { "commit": "5d61b9fd19d9f3cf653dbba615876e7792eea5ea", "tree": "8feaee398ec0bf43f94c759562e4d10f1c5eeebb", "parents": [ "bfe5424a8b31624e7a476f959d552999f931e7c7" ], "author": { "name": "Michal Marek", "email": "mmarek@suse.cz", "time": "Mon May 30 14:12:09 2011 +0200" }, "committer": { "name": "Michal Marek", "email": "mmarek@suse.cz", "time": "Thu Jun 09 23:05:54 2011 +0200" }, "message": "perf: Use make kernelversion instead of parsing the Makefile\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nSigned-off-by: Michal Marek \u003cmmarek@suse.cz\u003e\n" }, { "commit": "33726bf2140a0e7c9de3ccd7cba6d69962f0b773", "tree": "a4f5bca74d61072533806a2fe7f257357cae1ce2", "parents": [ "5b28f6a25ee202046e2d57bd431671bc23cf3dd1", "d7ebe75b065a7c2d58ffc12f9d2e00d5ea4e71eb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 08 08:36:15 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 08 08:36:15 2011 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Fix comments in include/linux/perf_event.h\n perf: Comment /proc/sys/kernel/perf_event_paranoid to be part of user ABI\n perf python: Fix argument name list of read_on_cpu()\n perf evlist: Don\u0027t die if sample_{id_all|type} is invalid\n perf python: Use exception to propagate errors\n perf evlist: Remove dependency on debug routines\n perf, cgroups: Fix up for new API\n" }, { "commit": "3ce2a0bc9dfb6423491afe0afc9f099e24b8cba4", "tree": "58fbef582846fef0e777b1a552aca12e21a071b1", "parents": [ "aef29bf20bd79c73992ab23d5067e9f0448b466e", "aa4a221875873d2a1f9656cb7fd7e545e952b4fa" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jun 04 12:28:05 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jun 04 12:28:05 2011 +0200" }, "message": "Merge branch \u0027perf/urgent\u0027 into perf/core\n\nConflicts:\n\ttools/perf/util/python.c\n\nMerge reason: resolve the conflict with perf/urgent.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9a44fde3435e0c6012cbc9122497bbbd3338434a", "tree": "6ad70370b4f6143e2acd324a466bccc21f60541b", "parents": [ "cd4ecf877a4d629c38571405fd649077c12dec50", "9bf7174949aef2f43253956e1f3ab01698abbd79" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jun 04 07:58:48 2011 +0900" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jun 04 07:58:48 2011 +0900" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest:\n ktest: Ignore unset values of the minconfig in config_bisect\n ktest: Fix result of rebooting the kernel\n ktest: Fix off-by-one in config bisect result\n" }, { "commit": "b273fa9716aa1564bee88ceee62f9042981cdc81", "tree": "06535a98fdf11d5a680d22a91b3013b412ca56f1", "parents": [ "56722381b8506733852c44dacf6d7bc5f90aedaf" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Mar 31 18:27:42 2011 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Jun 03 10:09:22 2011 -0300" }, "message": "perf python: Fix argument name list of read_on_cpu()\n\nMandatory arguments need to be present in the argument name list, as\nwell as optional arguments, otherwise python barfs:\n\n\t# ./python/twatch.py\n\tTraceback (most recent call last):\n\t File \"./python/twatch.py\", line 41, in \u003cmodule\u003e\n\t main()\n\t File \"./python/twatch.py\", line 32, in main\n\t event \u003d evlist.read_on_cpu(cpu)\n\tRuntimeError: more argument specifiers than keyword list entries\n\nHence, add cpu to the name list.\n\nCc: David Ahern \u003cdaahern@cisco.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\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/r/1301588863-20210-1-git-send-email-fweisbec@gmail.com\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "56722381b8506733852c44dacf6d7bc5f90aedaf", "tree": "867f605305c4e4fa94cea3eacaeb7e1b9ba62bdc", "parents": [ "9c850d6c4b95bb07fb066eb7f43dd4e3b4842b85" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 11:04:54 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Jun 03 10:07:52 2011 -0300" }, "message": "perf evlist: Don\u0027t die if sample_{id_all|type} is invalid\n\nFixes two more cases where the python binding would not load:\n\n. Not finding die(), which it shouldn\u0027t anyway, not good to just stop the\n world because some particular perf.data file is invalid, just propagate\n the error to the caller.\n\n. Not finding perf_sample_size: fix it by moving it from event.c to evsel,\n where it belongs, as most cases are moving to operate on an evsel object.o\n\nOne of the fixed problems:\n\n[root@emilia ~]# python\n\u003e\u003e\u003e import perf\nTraceback (most recent call last):\n File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\nImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: perf_sample_size\n\u003e\u003e\u003e\n[root@emilia ~]#\n\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-1hkj7b2cvgbfnoizsekjb6c9@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "9c850d6c4b95bb07fb066eb7f43dd4e3b4842b85", "tree": "5f6429b7558b215593f274b061c2979196df877a", "parents": [ "d21cc9f67d689effbfd24bac878bc2c057de8c46" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 10:55:10 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Jun 03 10:07:01 2011 -0300" }, "message": "perf python: Use exception to propagate errors\n\nWe were using pr_debug to tell the user about not being able to parse a sample\nwhere we should really use the python way of reporting errors: exceptions.\n\nFixes this problem:\n\n[root@emilia ~]# python\n\u003e\u003e\u003e import perf\nTraceback (most recent call last):\n File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\nImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: eprintf\n\u003e\u003e\u003e\n[root@emilia ~]\n\nAs we want to keep the objects linked in the python binding (and in the future\nin a shared library) minimal.\n\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-m9dba9kaluas0kq8r58z191c@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "d21cc9f67d689effbfd24bac878bc2c057de8c46", "tree": "24b0f76ac764ca708923045dbe617875a9a09ea2", "parents": [ "1fa7b6a29c61358cc2ca6f64cef4aa0e1a7ca74c" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 10:39:43 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Jun 03 10:05:23 2011 -0300" }, "message": "perf evlist: Remove dependency on debug routines\n\nSo far we avoided having to link debug.o in the python binding, keep it\nthat way by not using ui__warning() in evlist.c.\n\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-4wtew8hd3g7ejnlehtspys2t@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "7cec0922389e080d11ec43dd23aa778e136bd1e1", "tree": "0d772b32f38b4ef16e4256711e947b38baa2c2f9", "parents": [ "610723f24eeb842025178a6722fa9108c4e157b6" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Mon May 30 13:08:23 2011 -0600" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 13:31:01 2011 -0300" }, "message": "perf script: Add printing of sample address\n\nResolve to a function or variable if possible and if the sym option is\nenabled.\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/1306782503-22002-1-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": "610723f24eeb842025178a6722fa9108c4e157b6", "tree": "e184c3b2242ba9b9da065221d4673603dd9d8e86", "parents": [ "787bef174f055343c69a9639e6e05a564980ed4c" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Fri May 27 14:28:44 2011 -0600" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 13:29:14 2011 -0300" }, "message": "perf script: Make printing of dso a separate field option\n\nThe \u0027sym\u0027 option displays both the function name and the DSO it comes\nfrom. Split the display of the dso into a separate option. This allows\ndisplay of the ip address and symbol without the dso, thus shortening\nline lengths - and decluttering the output a bit.\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/1306528124-25861-3-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": "787bef174f055343c69a9639e6e05a564980ed4c", "tree": "d37e4fae03454e74684798bc112ba161786f978a", "parents": [ "2cee77c4505fc581f41b44e18ffc0953b67a414c" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Fri May 27 14:28:43 2011 -0600" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 13:28:34 2011 -0300" }, "message": "perf script: \"sym\" field really means show IP data\n\nCurrently the \"sym\" output field is used to dump instruction pointers\nand callchain stack. Sample addresses can also be converted to symbols,\nso the meaning of \"sym\" needs to be fixed. This patch adds an \"ip\"\noption and if it is selected the user can also opt to dump symbols for\nthem. If the user opts to dump IP without syms only the address is\nshown.\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/1306528124-25861-2-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": "2cee77c4505fc581f41b44e18ffc0953b67a414c", "tree": "12777ada659829082c27a1da31a295387355fd4b", "parents": [ "64348153c63b8c1f99f19f14a9c3cbd5df70c9d3" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Mon May 30 08:55:59 2011 -0600" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 13:26:15 2011 -0300" }, "message": "perf stat: clarify unsupported events from uncounted events\n\nperf stat continues running even if the event list contains counters\nthat are not supported. The resulting output then contains \u003cnot counted\u003e\nfor those events which gets confusing as to which events are supported,\nbut not counted and which are not supported.\n\nBefore:\n\nperf stat -ddd -- sleep 1\n\n Performance counter stats for \u0027sleep 1\u0027:\n\n 0.571283 task-clock # 0.001 CPUs utilized\n 1 context-switches # 0.002 M/sec\n 0 CPU-migrations # 0.000 M/sec\n 157 page-faults # 0.275 M/sec\n 1,037,707 cycles # 1.816 GHz\n \u003cnot counted\u003e stalled-cycles-frontend\n \u003cnot counted\u003e stalled-cycles-backend\n 654,499 instructions # 0.63 insns per cycle\n 136,129 branches # 238.286 M/sec\n \u003cnot counted\u003e branch-misses\n \u003cnot counted\u003e L1-dcache-loads\n \u003cnot counted\u003e L1-dcache-load-misses\n \u003cnot counted\u003e LLC-loads\n \u003cnot counted\u003e LLC-load-misses\n \u003cnot counted\u003e L1-icache-loads\n \u003cnot counted\u003e L1-icache-load-misses\n \u003cnot counted\u003e dTLB-loads\n \u003cnot counted\u003e dTLB-load-misses\n \u003cnot counted\u003e iTLB-loads\n \u003cnot counted\u003e iTLB-load-misses\n \u003cnot counted\u003e L1-dcache-prefetches\n \u003cnot counted\u003e L1-dcache-prefetch-misses\n\n 1.001004836 seconds time elapsed\n\nAfter:\n\nperf stat -ddd -- sleep 1\n\n Performance counter stats for \u0027sleep 1\u0027:\n\n 1.350326 task-clock # 0.001 CPUs utilized\n 2 context-switches # 0.001 M/sec\n 0 CPU-migrations # 0.000 M/sec\n 157 page-faults # 0.116 M/sec\n 11,986 cycles # 0.009 GHz\n \u003cnot supported\u003e stalled-cycles-frontend\n \u003cnot supported\u003e stalled-cycles-backend\n 496,986 instructions # 41.46 insns per cycle\n 138,065 branches # 102.246 M/sec\n 7,245 branch-misses # 5.25% of all branches\n \u003cnot counted\u003e L1-dcache-loads\n \u003cnot counted\u003e L1-dcache-load-misses\n \u003cnot counted\u003e LLC-loads\n \u003cnot counted\u003e LLC-load-misses\n \u003cnot counted\u003e L1-icache-loads\n \u003cnot counted\u003e L1-icache-load-misses\n \u003cnot counted\u003e dTLB-loads\n \u003cnot counted\u003e dTLB-load-misses\n \u003cnot counted\u003e iTLB-loads\n \u003cnot counted\u003e iTLB-load-misses\n \u003cnot counted\u003e L1-dcache-prefetches\n \u003cnot supported\u003e L1-dcache-prefetch-misses\n\n 1.002397333 seconds time elapsed\n\nv1-\u003ev2:\nchanged supported type from int to bool\n\nv2-\u003ev3\nfixed vertical alignment of new struct element\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/1306767359-13221-1-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": "64348153c63b8c1f99f19f14a9c3cbd5df70c9d3", "tree": "c1bee41565096fb2adce58125a9c936a26fa6fe4", "parents": [ "e95cc02880947e9f77540b03e166470e8ac14cbc" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Mar 31 18:27:43 2011 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 13:21:26 2011 -0300" }, "message": "perf python: Cleanup useless double NULL termination in method arg names\n\nThe list of methods argument names only needs to be NULL terminated\nonce. Remove the second ones.\n\nCc: David Ahern \u003cdaahern@cisco.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\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/r/1301588863-20210-2-git-send-email-fweisbec@gmail.com\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "e95cc02880947e9f77540b03e166470e8ac14cbc", "tree": "500dca257ad17c606e96bd28d3f0d2aaedff9996", "parents": [ "c2a70653af45c9cbb0cab900e8931b062e57b1ae" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Mar 31 18:27:42 2011 +0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 13:21:07 2011 -0300" }, "message": "perf python: Fix argument name list of read_on_cpu()\n\nMandatory arguments need to be present in the argument name list, as\nwell as optional arguments, otherwise python barfs:\n\n\t# ./python/twatch.py\n\tTraceback (most recent call last):\n\t File \"./python/twatch.py\", line 41, in \u003cmodule\u003e\n\t main()\n\t File \"./python/twatch.py\", line 32, in main\n\t event \u003d evlist.read_on_cpu(cpu)\n\tRuntimeError: more argument specifiers than keyword list entries\n\nHence, add cpu to the name list.\n\nCc: David Ahern \u003cdaahern@cisco.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\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/r/1301588863-20210-1-git-send-email-fweisbec@gmail.com\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "9bf7174949aef2f43253956e1f3ab01698abbd79", "tree": "0c40eb90a854dd369df648d0a767d03fc6ced0c9", "parents": [ "4da46da2d295c0d9f4aaf28dd2b70a1ecb42d972" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Jun 01 23:27:19 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Jun 02 11:57:57 2011 -0400" }, "message": "ktest: Ignore unset values of the minconfig in config_bisect\n\nBy ignoring the unset values of the minconfig in deciding\nwhat to test in the config_bisect can cause the problem\nconfig from being tested too.\n\nJust do not test the configs that are set in the minconfig.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "4da46da2d295c0d9f4aaf28dd2b70a1ecb42d972", "tree": "a5d01b5c399702afd71969ca0b1e94be4aa1c254", "parents": [ "4c8cc55b3c0ebe989e727017933945b68b4327cd" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Jun 01 23:25:13 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Jun 02 11:57:56 2011 -0400" }, "message": "ktest: Fix result of rebooting the kernel\n\nThe command that is called that reboots the kernel may fail\nbut the return code is not passed back to the ktest.pl script.\nThis is because a \u0027;\u0027 is used between the two commands and\nif the second command fails, only the first command\u0027s return\ncode is returned. Using a \u0027\u0026\u0026\u0027 between the two commands fixes\nthis.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "4c8cc55b3c0ebe989e727017933945b68b4327cd", "tree": "725aa612c6d01c912e724c3dc0e1eb8f4e1b2712", "parents": [ "55922c9d1b84b89cb946c777fddccb3247e7df2c" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Jun 01 23:22:30 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Jun 02 11:57:41 2011 -0400" }, "message": "ktest: Fix off-by-one in config bisect result\n\nBecause in perl the array size returned by $#arr, is the last\nindex and not the actually size of the array, we end the config\nbisect early, thinking there is only one config left when there\nare in fact two. Thus the result has a 50% chance of picking\nthe correct config that caused the problem.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c2a70653af45c9cbb0cab900e8931b062e57b1ae", "tree": "e7b1b10cc71c5cccd3d3b7d20cb8001ec313fbff", "parents": [ "5c6970af2f4be4e04b06fe78214f6809777a8354" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 11:04:54 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 11:04:54 2011 -0300" }, "message": "perf evlist: Don\u0027t die if sample_{id_all|type} is invalid\n\nFixes two more cases where the python binding would not load:\n\n. Not finding die(), which it shouldn\u0027t anyway, not good to just stop the\n world because some particular perf.data file is invalid, just propagate\n the error to the caller.\n\n. Not finding perf_sample_size: fix it by moving it from event.c to evsel,\n where it belongs, as most cases are moving to operate on an evsel object.o\n\nOne of the fixed problems:\n\n[root@emilia ~]# python\n\u003e\u003e\u003e import perf\nTraceback (most recent call last):\n File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\nImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: perf_sample_size\n\u003e\u003e\u003e\n[root@emilia ~]#\n\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-1hkj7b2cvgbfnoizsekjb6c9@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "5c6970af2f4be4e04b06fe78214f6809777a8354", "tree": "ec39ed480a4d8a15fe261d6a37edf894fb2fa936", "parents": [ "bccdaba044a445eb2c391295587aa47977994777" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 10:55:10 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 10:55:10 2011 -0300" }, "message": "perf python: Use exception to propagate errors\n\nWe were using pr_debug to tell the user about not being able to parse a sample\nwhere we should really use the python way of reporting errors: exceptions.\n\nFixes this problem:\n\n[root@emilia ~]# python\n\u003e\u003e\u003e import perf\nTraceback (most recent call last):\n File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\nImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: eprintf\n\u003e\u003e\u003e\n[root@emilia ~]\n\nAs we want to keep the objects linked in the python binding (and in the future\nin a shared library) minimal.\n\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-m9dba9kaluas0kq8r58z191c@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "bccdaba044a445eb2c391295587aa47977994777", "tree": "d06ca43b4150fbc7bbd6e3116d0a0b44ff64de1c", "parents": [ "64ce312618ef0e11d88def80effcefd1b59fdb1e" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 10:39:43 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Jun 02 10:41:41 2011 -0300" }, "message": "perf evlist: Remove dependency on debug routines\n\nSo far we avoided having to link debug.o in the python binding, keep it\nthat way by not using ui__warning() in evlist.c.\n\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-4wtew8hd3g7ejnlehtspys2t@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "4423fe40b03f32b11e72ecfa03077e702e55d5a9", "tree": "88c59c0b04cd8c960944504e2ff081be48996316", "parents": [ "8ea8cf89e19aeb596b818ee5f2bec8a8b0586b60" ], "author": { "name": "Michael S. Tsirkin", "email": "mst@redhat.com", "time": "Fri May 20 02:11:05 2011 +0300" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon May 30 11:14:15 2011 +0930" }, "message": "virtio_test: support event index\n\nAdd ability to test the new event idx feature,\nenable by default.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "e4a338d05df93ab1ebf291aca1e753064319d301", "tree": "39a843944ca23ef9a927030de7295146e8bd5dc4", "parents": [ "5f6f55809758e106eca72c6e01402c8080a88ee8" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 13:42:16 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 16:02:29 2011 -0300" }, "message": "perf top: Don\u0027t stop if no kernel symtab is found\n\nWe now just warn the user about the fact and go on providing just\nuserspace samples.\n\nThis fixes a problem when no vmlinux is explicetely passed by the user,\nthus symbol_conf.vmlinux_name is NULL, no suitable vmlinux is found, and\nthen we get:\n\n aldebaran:~\u003e perf top -p 7557\n [kernel.kallsyms] with build id 44d9a989eabbd79e486bc079d6b743d397c204e0\n not found, continuing without symbols\n The (null) file can\u0027t be used\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\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: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-cj2g81hn64wv2bipmqk4fy2m@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "5f6f55809758e106eca72c6e01402c8080a88ee8", "tree": "23a21a57154fc589d4606a6ef1856cc1b38d93e2", "parents": [ "59fb1ee95e74e8e0777289c44300cbe812aca836" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 11:53:28 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 16:02:25 2011 -0300" }, "message": "perf top: Handle kptr_restrict\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\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: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-cyl5zmi1nu35vyu7l5im2pyv@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "59fb1ee95e74e8e0777289c44300cbe812aca836", "tree": "67204d7bc49c0827947310f58419c0267d0bde87", "parents": [ "4af4c9550ccaaf0b53013ff730bc15068ffe6abc" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 11:14:00 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 16:02:20 2011 -0300" }, "message": "perf top: Remove unused macro\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\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: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-weqbs0tkk2u0qp1xxdxxosfg@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "4af4c9550ccaaf0b53013ff730bc15068ffe6abc", "tree": "52d819119adb048298b35bb67e5c2cdf5cbff3d9", "parents": [ "646aaea615704010b5fd2c8c8891ff1a3a4b4f1a" ], "author": { "name": "David Ahern", "email": "dsahern@gmail.com", "time": "Fri May 27 09:58:34 2011 -0600" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 16:02:12 2011 -0300" }, "message": "perf events: initialize fd array to -1 instead of 0\n\nperf_evsel__alloc_fd allocates an array of file descriptors with the\nmemory initialized to 0. The array has dimensions for cpus and threads.\n\nLater, __perf_evsel__open calls sys_perf_event_open for each cpu and thread\ndimensions. If the open fails for any of the cpus or threads then the fd\u0027s\nfor this event are closed and the fd entry in the array is set to -1. Now,\nif the first attempt fails for the event (e.g., the event is not supported)\nthe remaining dimensions (cpu \u003e 0 and thread \u003e 0) are not touched and left\nat the initialized value of 0.\n\nbuiltin-stat catches ENOENT and ENOSYS failures and allows the command to\ncontinue. The end result is that stat attempts to read from an fd of 0 which\nof course is stdin and so the command hangs until you type ctrl-D.\n\nResolve by initializing the array to -1 since an fd \u003c 0 is already\nhandled.\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/1306511914-8016-1-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": "646aaea615704010b5fd2c8c8891ff1a3a4b4f1a", "tree": "e7efc5b2a67f18f1ce3fb53ce70c299f1c74c6c8", "parents": [ "d6a72fe465f4c54654a1d5488daeb820b4ecf275" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 11:00:41 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri May 27 16:02:09 2011 -0300" }, "message": "perf tools: Make sure kptr_restrict warnings fit 80 col terms\n\nSuggested-by: Ingo Molnar \u003cmingo@elte.hu\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: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-i1p8vrhq7xveyui6t1sc914e@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "75911c9bd1134f8c0b682aa1e8a8dbefec3ca07a", "tree": "284dd01cd1caa8814d07ed758d8fd71cc70167ac", "parents": [ "ec80fde746e3ccf93895d25ae1a7071c9af52585" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu May 26 10:13:38 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu May 26 11:16:29 2011 -0300" }, "message": "perf tools: Fix build on older systems\n\nWhere /usr/include/linux/const.h is not present, e.g. RHEL5.\n\nReported-by: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\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: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-ypcw2mu0w7dl1rrc6ncz3pee@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "ec80fde746e3ccf93895d25ae1a7071c9af52585", "tree": "d3b5f0c8001873c43ffb95ccf08a414a0f492b1c", "parents": [ "ea7659fb2b876337aee719d9d5ddb05531dfb334" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu May 26 09:53:51 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu May 26 11:15:25 2011 -0300" }, "message": "perf symbols: Handle /proc/sys/kernel/kptr_restrict\n\nPerf uses /proc/modules to figure out where kernel modules are loaded.\n\nWith the advent of kptr_restrict, non root users get zeroes for all module\nstart addresses.\n\nSo check if kptr_restrict is non zero and don\u0027t generate the syntethic\nPERF_RECORD_MMAP events for them.\n\nWarn the user about it in perf record and in perf report.\n\nIn perf report the reference relocation symbol being zero means that\nkptr_restrict was set, thus /proc/kallsyms has only zeroed addresses, so don\u0027t\nuse it to fixup symbol addresses when using a valid kallsyms (in the buildid\ncache) or vmlinux (in the vmlinux path) build-id located automatically or\nspecified by the user.\n\nProvide an explanation about it in \u0027perf report\u0027 if kernel samples were taken,\nchecking if a suitable vmlinux or kallsyms was found/specified.\n\nRestricted /proc/kallsyms don\u0027t go to the buildid cache anymore.\n\nExample:\n\n [acme@emilia ~]$ perf record -F 100000 sleep 1\n\n WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted, check\n /proc/sys/kernel/kptr_restrict.\n\n Samples in kernel functions may not be resolved if a suitable vmlinux file is\n not found in the buildid cache or in the vmlinux path.\n\n Samples in kernel modules won\u0027t be resolved at all.\n\n If some relocation was applied (e.g. kexec) symbols may be misresolved even\n with a suitable vmlinux or kallsyms file.\n\n [ perf record: Woken up 1 times to write data ]\n [ perf record: Captured and wrote 0.005 MB perf.data (~231 samples) ]\n [acme@emilia ~]$\n\n [acme@emilia ~]$ perf report --stdio\n Kernel address maps (/proc/{kallsyms,modules}) were restricted,\n check /proc/sys/kernel/kptr_restrict before running \u0027perf record\u0027.\n\n If some relocation was applied (e.g. kexec) symbols may be misresolved.\n\n Samples in kernel modules can\u0027t be resolved as well.\n\n # Events: 13 cycles\n #\n # Overhead Command Shared Object Symbol\n # ........ ....... ................. .....................\n #\n 20.24% sleep [kernel.kallsyms] [k] page_fault\n 20.04% sleep [kernel.kallsyms] [k] filemap_fault\n 19.78% sleep [kernel.kallsyms] [k] __lru_cache_add\n 19.69% sleep ld-2.12.so [.] memcpy\n 14.71% sleep [kernel.kallsyms] [k] dput\n 4.70% sleep [kernel.kallsyms] [k] flush_signal_handlers\n 0.73% sleep [kernel.kallsyms] [k] perf_event_comm\n 0.11% sleep [kernel.kallsyms] [k] native_write_msr_safe\n\n #\n # (For a higher level overview, try: perf report --sort comm,dso)\n #\n [acme@emilia ~]$\n\nThis is because it found a suitable vmlinux (build-id checked) in\n/lib/modules/2.6.39-rc7+/build/vmlinux (use -v in perf report to see the long\nfile name).\n\nIf we remove that file from the vmlinux path:\n\n [root@emilia ~]# mv /lib/modules/2.6.39-rc7+/build/vmlinux \\\n\t\t /lib/modules/2.6.39-rc7+/build/vmlinux.OFF\n [acme@emilia ~]$ perf report --stdio\n [kernel.kallsyms] with build id 57298cdbe0131f6871667ec0eaab4804dcf6f562\n not found, continuing without symbols\n\n Kernel address maps (/proc/{kallsyms,modules}) were restricted, check\n /proc/sys/kernel/kptr_restrict before running \u0027perf record\u0027.\n\n As no suitable kallsyms nor vmlinux was found, kernel samples can\u0027t be\n resolved.\n\n Samples in kernel modules can\u0027t be resolved as well.\n\n # Events: 13 cycles\n #\n # Overhead Command Shared Object Symbol\n # ........ ....... ................. ......\n #\n 80.31% sleep [kernel.kallsyms] [k] 0xffffffff8103425a\n 19.69% sleep ld-2.12.so [.] memcpy\n\n #\n # (For a higher level overview, try: perf report --sort comm,dso)\n #\n [acme@emilia ~]$\n\nReported-by: Stephane Eranian \u003ceranian@google.com\u003e\nSuggested-by: David Miller \u003cdavem@davemloft.net\u003e\nCc: Dave Jones \u003cdavej@redhat.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Kees Cook \u003ckees.cook@canonical.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-mt512joaxxbhhp1odop04yit@git.kernel.org\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "ea7659fb2b876337aee719d9d5ddb05531dfb334", "tree": "899b5d257959d8071b7a9d579c9fb6a8545a77d9", "parents": [ "1102c660dd35725a11c7ca9365c237f2f42f6b30" ], "author": { "name": "Jesper Juhl", "email": "jj@chaosbits.net", "time": "Thu May 26 10:21:05 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 26 13:49:57 2011 +0200" }, "message": "perf: Remove duplicate headers\n\nSigned-off-by: Jesper Juhl \u003cjj@chaosbits.net\u003e\nCc: Tom Zanussi \u003ctom.zanussi@linux.intel.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\nCc: trivial@kernel.org\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLink: http://lkml.kernel.org/r/alpine.LNX.2.00.1105261011290.17400@swampdragon.chaosbits.net\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5214638384a968574a5ea3df1d3b3194da32a496", "tree": "f0defc396d154c35cd57692c33e7596cd314a93b", "parents": [ "df462b3dbeeaae7141f1b63cbfcc1e1bae6a85fc", "0f61f3e4db71946292ef8d6d6df74b8fcf001646" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 23 21:20:48 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 23 21:20:48 2011 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf tools: Fix sample type size calculation in 32 bits archs\n profile: Use vzalloc() rather than vmalloc() \u0026 memset()\n" }, { "commit": "0f61f3e4db71946292ef8d6d6df74b8fcf001646", "tree": "fe1412923e82309065038c526f6fda664273e5e7", "parents": [ "8ce26169555cf5634263d39d3665e45300218a5e" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue May 24 03:31:26 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 24 04:33:24 2011 +0200" }, "message": "perf tools: Fix sample type size calculation in 32 bits archs\n\nThe shift used here to count the number of bits set in\nthe mask doesn\u0027t work above the low part for archs that\nare not 64 bits.\n\nFix the constant used for the shift.\n\nThis fixes a 32-bit perf top failure reported by Eric Dumazet:\n\n\tCan\u0027t parse sample, err \u003d -14\n\tCan\u0027t parse sample, err \u003d -14\n\t...\n\nReported-and-tested-by: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\nLink: http://lkml.kernel.org/r/1306200686-17317-1-git-send-email-fweisbec@gmail.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "19504828b4bee5e471bcd35e214bc6fd0d380692", "tree": "30d4ffb6783daf9fadd47548c035646d3f0f073e", "parents": [ "57d19e80f459dd845fb3cfeba8e6df8471bac142", "3cb6d1540880e767d911b79eb49578de2190f428" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 23 09:25:52 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 23 09:25:52 2011 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf tools: Fix sample size bit operations\n perf tools: Fix ommitted mmap data update on remap\n watchdog: Change the default timeout and configure nmi watchdog period based on watchdog_thresh\n watchdog: Disable watchdog when thresh is zero\n watchdog: Only disable/enable watchdog if neccessary\n watchdog: Fix rounding bug in get_sample_period()\n perf tools: Propagate event parse error handling\n perf tools: Robustify dynamic sample content fetch\n perf tools: Pre-check sample size before parsing\n perf tools: Move evlist sample helpers to evlist area\n perf tools: Remove junk code in mmap size handling\n perf tools: Check we are able to read the event size on mmap\n" }, { "commit": "57d19e80f459dd845fb3cfeba8e6df8471bac142", "tree": "8254766715720228db3d50f1ef3c7fe003c06d65", "parents": [ "ee9ec4f82049c678373a611ce20ac67fe9ad836e", "e64851f5a0ad6ec991f74ebb3108c35aa0323d5f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 23 09:12:26 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 23 09:12:26 2011 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)\n b43: fix comment typo reqest -\u003e request\n Haavard Skinnemoen has left Atmel\n cris: typo in mach-fs Makefile\n Kconfig: fix copy/paste-ism for dell-wmi-aio driver\n doc: timers-howto: fix a typo (\"unsgined\")\n perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c\n md, raid5: Fix spelling error in comment (\u0027Ofcourse\u0027 --\u003e \u0027Of course\u0027).\n treewide: fix a few typos in comments\n regulator: change debug statement be consistent with the style of the rest\n Revert \"arm: mach-u300/gpio: Fix mem_region resource size miscalculations\"\n audit: acquire creds selectively to reduce atomic op overhead\n rtlwifi: don\u0027t touch with treewide double semicolon removal\n treewide: cleanup continuations and remove logging message whitespace\n ath9k_hw: don\u0027t touch with treewide double semicolon removal\n include/linux/leds-regulator.h: fix syntax in example code\n tty: fix typo in descripton of tty_termios_encode_baud_rate\n xtensa: remove obsolete BKL kernel option from defconfig\n m68k: fix comment typo \u0027occcured\u0027\n arch:Kconfig.locks Remove unused config option.\n treewide: remove extra semicolons\n ...\n" }, { "commit": "2e77defc5da779888f3cf65e66cd3d47ae2d690f", "tree": "a9b961e698a03b08e96a3d07d8545a5fea4289dd", "parents": [ "caebc160ce3f76761cc62ad96ef6d6f30f54e3dd", "2a62512bceb44ad45f78aa7ca0e9cfaee9eae46f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 23 08:20:44 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 23 08:20:44 2011 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest:\n ktest: Allow options to be used by other options\n ktest: Create variables for the ktest config files\n ktest: Reboot after each patchcheck run\n ktest: Reboot to good kernel after every bisect run\n ktest: If test failed due to timeout, print that\n ktest: Fix post install command\n" }, { "commit": "3cb6d1540880e767d911b79eb49578de2190f428", "tree": "63e103e0acc4cb86486c50d81842a0c42194e0fb", "parents": [ "998bedc8c56c6869de457c845cbd328592e5e82e" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon May 23 13:06:27 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 23 13:26:36 2011 +0200" }, "message": "perf tools: Fix sample size bit operations\n\nWhat we want is to count the number of bits in the mask,\nnot some other random operation written in the middle\nof the night.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLink: http://lkml.kernel.org/r/1306148788-6179-2-git-send-email-fweisbec@gmail.com\n[ Fixed perf_event__names[] alignment which was nearby and hurting my eyes ... ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "998bedc8c56c6869de457c845cbd328592e5e82e", "tree": "c269208d64edc1a535382601a8904e0eb96a1fcc", "parents": [ "4eec42f392043063d0f019640b4ccc2a45570002" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon May 23 13:06:28 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 23 13:22:57 2011 +0200" }, "message": "perf tools: Fix ommitted mmap data update on remap\n\nCommit eac9eacee16 \"perf tools: Check we are able to read the event\nsize on mmap\" brought a check to ensure we can read the size of the\nevent before dereferencing it, and do a remap otherwise to move the\nbuffer forward.\n\nHowever that remap was ommitting all the necessary work to\nupdate the new page offset, head, and to unmap previous pages,\netc...\n\nTo fix this, gather all the code that fetches the event in a\nseperate helper which does all the necessary checks about the\nheader/event size and tells us anytime a remap is needed.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLink: http://lkml.kernel.org/r/1306148788-6179-3-git-send-email-fweisbec@gmail.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3ac1bbcf13c56a19927df670f429eb0c3c11f8e5", "tree": "693e2b7f1a9cb0c6ed6d44375e370e1ae08c7ac9", "parents": [ "a2d063ac216c1618bfc2b4d40b7176adffa63511", "5538becaec9ca2ff21e7826372941dc46f498487" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun May 22 10:07:37 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun May 22 10:10:01 2011 +0200" }, "message": "Merge branch \u0027perf/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent\n\nConflicts:\n\ttools/perf/builtin-top.c\n\nSemantic conflict:\n\tutil/include/linux/list.h # fix prefetch.h removal fallout\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5538becaec9ca2ff21e7826372941dc46f498487", "tree": "66b51fae732a6993f4af1434a1ffe4a83110c71c", "parents": [ "98e1da905cbe64bb023a165c7c01eef5e800609e" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 22 02:17:22 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 22 03:38:49 2011 +0200" }, "message": "perf tools: Propagate event parse error handling\n\nBetter handle event parsing error by propagating the details\nin upper layers or by dumping some failure message. So that\nthe user knows he has some crazy events in the batch.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\n" }, { "commit": "98e1da905cbe64bb023a165c7c01eef5e800609e", "tree": "c77e7a64263ecb8fc9f7971a44dd085f14f039f6", "parents": [ "a285412479b6d5af3e48273a92ec2f1987df8cd1" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 21 20:08:15 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 22 03:38:48 2011 +0200" }, "message": "perf tools: Robustify dynamic sample content fetch\n\nEnsure the size of the dynamic fields such as callchains\nor raw events don\u0027t overlap the whole event boundaries.\n\nThis prevents from dereferencing junk if the given size of\nthe callchain goes too eager.\n\nReported-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\n" }, { "commit": "a285412479b6d5af3e48273a92ec2f1987df8cd1", "tree": "29f68684cebb26b86c3dd0b0f0fc4e5d6553c989", "parents": [ "74429964d8e29c0107fa6e9cdf35b8f33f57405d" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 21 19:33:04 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 22 03:38:36 2011 +0200" }, "message": "perf tools: Pre-check sample size before parsing\n\nCheck that the total size of the sample fields having a fixed\nsize do not exceed the one of the whole event. This robustifies\nthe sample parsing.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\n" }, { "commit": "74429964d8e29c0107fa6e9cdf35b8f33f57405d", "tree": "8ffdb81449365e3b720e7bfea6ae2ba2b543dae1", "parents": [ "dd5f5fd1083601d9145168ce43a268a068add81a" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 21 17:49:00 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 22 03:12:29 2011 +0200" }, "message": "perf tools: Move evlist sample helpers to evlist area\n\nThese APIs should belong to evlist.c as they may not be\nexclusively tied to the headers.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\n" }, { "commit": "dd5f5fd1083601d9145168ce43a268a068add81a", "tree": "06b34813b61d59b8c9fe153784b5929e5a269776", "parents": [ "eac9eacee1602710dda47c517ad0b61ac6f429bf" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 21 17:07:24 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 22 03:12:28 2011 +0200" }, "message": "perf tools: Remove junk code in mmap size handling\n\nsize is overriden later and used only then. Those\nlines are only junk, probably a leftover.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\n" }, { "commit": "eac9eacee1602710dda47c517ad0b61ac6f429bf", "tree": "ea59e724cec133e301cd73306e31362a1ddfe8f3", "parents": [ "c5fc472171ec4f96d06d1ac039d88f9b89bb95db" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat May 21 17:07:24 2011 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun May 22 03:12:13 2011 +0200" }, "message": "perf tools: Check we are able to read the event size on mmap\n\nCheck we have enough mmaped space to read the current event\nsize from its headers, otherwise we may dereference some\nhell there.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\n" }, { "commit": "268bb0ce3e87872cb9290c322b0d35bce230d88f", "tree": "c8331ade4a3e24fc589c4eb62731bc2312d35333", "parents": [ "257313b2a87795e07a0bdf58d0fffbdba8b31051" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 20 12:50:29 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 20 12:50:29 2011 -0700" }, "message": "sanitize \u003clinux/prefetch.h\u003e usage\n\nCommit e66eed651fd1 (\"list: remove prefetching from regular list\niterators\") removed the include of prefetch.h from list.h, which\nuncovered several cases that had apparently relied on that rather\nobscure header file dependency.\n\nSo this fixes things up a bit, using\n\n grep -L linux/prefetch.h $(git grep -l \u0027[^a-z_]prefetchw*(\u0027 -- \u0027*.[ch]\u0027)\n grep -L \u0027prefetchw*(\u0027 $(git grep -l \u0027linux/prefetch.h\u0027 -- \u0027*.[ch]\u0027)\n\nto guide us in finding files that either need \u003clinux/prefetch.h\u003e\ninclusion, or have it despite not needing it.\n\nThere are more of them around (mostly network drivers), but this gets\nmany core ones.\n\nReported-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2a62512bceb44ad45f78aa7ca0e9cfaee9eae46f", "tree": "53790abb9948f7ad3f1269f74bd59b553130e67b", "parents": [ "77d942ceacbad02d8498ac72ed8d634634057aec" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 20 15:48:59 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 20 15:48:59 2011 -0400" }, "message": "ktest: Allow options to be used by other options\n\nThere are cases where one ktest option may be used within another\nktest option. Allow them to be reused just like config variables\nbut there are evaluated at time of test not config processing time.\n\nThus having something like:\n\nMAKE_CMD \u003d make ARCH\u003d${ARCH}\n\nTEST_START\nARCH \u003d powerpc\n\nTEST_START\nARCH \u003d arm\n\nWill have the arch defined for each test iteration.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "77d942ceacbad02d8498ac72ed8d634634057aec", "tree": "172a166472e0a9082358f7b9cd59e1523ca2d8e9", "parents": [ "27d934b28752b860cba6c0d77ea4598861d80998" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 20 13:36:58 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 20 15:26:26 2011 -0400" }, "message": "ktest: Create variables for the ktest config files\n\nI found that I constantly reuse information for each test case.\nIt would be nice to just define a variable to reuse.\n\nFor example I may have:\n\nTEST_START\n[...]\nTEST \u003d ssh root@mybox /path/to/my/script\n\nTEST_START\n[...]\nTEST \u003d ssh root@mybox /path/to/my/script\n\n[etc]\n\nThe issue is, I may wont to change that script or one of the other\nfields. Then I need to update each line individually.\n\nWith the addition of config variables (variables only used during parsing\nthe config) we can simplify the config files. These variables can\nalso be defined multiple times and each time the new value will\noverwrite the old value.\n\nThe convention to use a config variable over a ktest option is to use :\u003d\ninstead of \u003d.\n\nNow we could do:\n\nUSER :\u003d root\nTARGET :\u003d mybox\nTEST_SCRIPT :\u003d /path/to/my/script\nTEST_CASE :\u003d ${USER}@${TARGET} ${TEST_SCRIPT}\n\nTEST_START\n[...]\nTEST \u003d ${TEST_CASE}\n\nTEST_START\n[...]\nTEST \u003d ${TEST_CASE}\n\n[etc]\n\nNow we just need to update the variables at the top.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "27d934b28752b860cba6c0d77ea4598861d80998", "tree": "30b1dda6c72d07a7736a003fc73c0606843e178f", "parents": [ "4025bc62dd045d326d8a26a50fc86fd163aec89f" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 20 09:18:18 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 20 09:21:02 2011 -0400" }, "message": "ktest: Reboot after each patchcheck run\n\nThe patches being checked may not leave the kernel in a state\nthat the next run will allow the new kernel to be copied to the\nmachine. Reboot to a known good kernel before continuing to the\nnext kernel to test.\n\nAdded option PATCHCHECK_SLEEP_TIME for the max time to sleep between\npatchcheck reboots.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "4025bc62dd045d326d8a26a50fc86fd163aec89f", "tree": "27cf9354208e36956dbaa51ba5f45dcc11f20f42", "parents": [ "4d62bf51ac3408de85ebc1b677058482069b2e1c" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 20 09:16:29 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 20 09:16:29 2011 -0400" }, "message": "ktest: Reboot to good kernel after every bisect run\n\nReboot after each bisect run regardless if the bisect passed\nor failed. The test may just be to boot the kernel and that kernel\nmay not have a way to copy the next kerne to it. Reboot to a known\ngood kernel after each bisect run.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "4d62bf51ac3408de85ebc1b677058482069b2e1c", "tree": "b83c5694510dbe7a1a59ec0f9ba5b9e759a5fbf1", "parents": [ "ca6a21f874301d0eb133819a60731c0f39967311" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri May 20 09:14:35 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 20 09:14:35 2011 -0400" }, "message": "ktest: If test failed due to timeout, print that\n\nIf the test failed due to timeout for boot, print a message saying\nso. Otherwise the user will be confused to why their test just failed.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "ca6a21f874301d0eb133819a60731c0f39967311", "tree": "2cef94665e92dfb0d5882a7668561d76d2fce688", "parents": [ "61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Mar 25 22:42:53 2011 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri May 20 09:11:58 2011 -0400" }, "message": "ktest: Fix post install command\n\nThe command to run post install (for those that want initrds) was\nbroken. Instead of doing a substitution for the $KERNEL_VERSION\nvariable. It was replacing the entire command with nothing.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "eb04f2f04ed1227c266b3219c0aaeda525639718", "tree": "7f224483a3cd0e439cd64a8666ec9dc5ed178a3d", "parents": [ "5765040ebfc9a28d9dcfaaaaf3d25840d922de96", "80d02085d99039b3b7f3a73c8896226b0cb1ba07" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 19 18:14:34 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 19 18:14:34 2011 -0700" }, "message": "Merge branch \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (78 commits)\n Revert \"rcu: Decrease memory-barrier usage based on semi-formal proof\"\n net,rcu: convert call_rcu(prl_entry_destroy_rcu) to kfree\n batman,rcu: convert call_rcu(softif_neigh_free_rcu) to kfree_rcu\n batman,rcu: convert call_rcu(neigh_node_free_rcu) to kfree()\n batman,rcu: convert call_rcu(gw_node_free_rcu) to kfree_rcu\n net,rcu: convert call_rcu(kfree_tid_tx) to kfree_rcu()\n net,rcu: convert call_rcu(xt_osf_finger_free_rcu) to kfree_rcu()\n net/mac80211,rcu: convert call_rcu(work_free_rcu) to kfree_rcu()\n net,rcu: convert call_rcu(wq_free_rcu) to kfree_rcu()\n net,rcu: convert call_rcu(phonet_device_rcu_free) to kfree_rcu()\n perf,rcu: convert call_rcu(swevent_hlist_release_rcu) to kfree_rcu()\n perf,rcu: convert call_rcu(free_ctx) to kfree_rcu()\n net,rcu: convert call_rcu(__nf_ct_ext_free_rcu) to kfree_rcu()\n net,rcu: convert call_rcu(net_generic_release) to kfree_rcu()\n net,rcu: convert call_rcu(netlbl_unlhsh_free_addr6) to kfree_rcu()\n net,rcu: convert call_rcu(netlbl_unlhsh_free_addr4) to kfree_rcu()\n security,rcu: convert call_rcu(sel_netif_free) to kfree_rcu()\n net,rcu: convert call_rcu(xps_dev_maps_release) to kfree_rcu()\n net,rcu: convert call_rcu(xps_map_release) to kfree_rcu()\n net,rcu: convert call_rcu(rps_map_release) to kfree_rcu()\n ...\n" }, { "commit": "80fe02b5daf176f99d3afc8f6c9dc9dece019836", "tree": "970b90d56870e1b87b4c8efff7ec31fc454445a7", "parents": [ "df48d8716eab9608fe93924e4ae06ff110e8674f", "db670dac49b5423b39b5e523d28fe32045d71b10", "ec514c487c3d4b652943da7b0afbc094eee08cfa" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 19 17:41:22 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 19 17:41:22 2011 -0700" }, "message": "Merge branches \u0027sched-core-for-linus\u0027 and \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (60 commits)\n sched: Fix and optimise calculation of the weight-inverse\n sched: Avoid going ahead if -\u003ecpus_allowed is not changed\n sched, rt: Update rq clock when unthrottling of an otherwise idle CPU\n sched: Remove unused parameters from sched_fork() and wake_up_new_task()\n sched: Shorten the construction of the span cpu mask of sched domain\n sched: Wrap the \u0027cfs_rq-\u003enr_spread_over\u0027 field with CONFIG_SCHED_DEBUG\n sched: Remove unused \u0027this_best_prio arg\u0027 from balance_tasks()\n sched: Remove noop in alloc_rt_sched_group()\n sched: Get rid of lock_depth\n sched: Remove obsolete comment from scheduler_tick()\n sched: Fix sched_domain iterations vs. RCU\n sched: Next buddy hint on sleep and preempt path\n sched: Make set_*_buddy() work on non-task entities\n sched: Remove need_migrate_task()\n sched: Move the second half of ttwu() to the remote cpu\n sched: Restructure ttwu() some more\n sched: Rename ttwu_post_activation() to ttwu_do_wakeup()\n sched: Remove rq argument from ttwu_stat()\n sched: Remove rq-\u003elock from the first half of ttwu()\n sched: Drop rq-\u003elock from sched_exec()\n ...\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix rt_rq runtime leakage bug\n" }, { "commit": "df48d8716eab9608fe93924e4ae06ff110e8674f", "tree": "0fe10733a414b3651e1dae29518b7960a4da0aa4", "parents": [ "acd30250d7d0f495685d1c7c6184636a22fcdf7f", "29510ec3b626c86de9707bb8904ff940d430289b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 19 17:36:08 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 19 17:36:08 2011 -0700" }, "message": "Merge branch \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (107 commits)\n perf stat: Add more cache-miss percentage printouts\n perf stat: Add -d -d and -d -d -d options to show more CPU events\n ftrace/kbuild: Add recordmcount files to force full build\n ftrace: Add self-tests for multiple function trace users\n ftrace: Modify ftrace_set_filter/notrace to take ops\n ftrace: Allow dynamically allocated function tracers\n ftrace: Implement separate user function filtering\n ftrace: Free hash with call_rcu_sched()\n ftrace: Have global_ops store the functions that are to be traced\n ftrace: Add ops parameter to ftrace_startup/shutdown functions\n ftrace: Add enabled_functions file\n ftrace: Use counters to enable functions to trace\n ftrace: Separate hash allocation and assignment\n ftrace: Create a global_ops to hold the filter and notrace hashes\n ftrace: Use hash instead for FTRACE_FL_FILTER\n ftrace: Replace FTRACE_FL_NOTRACE flag with a hash of ignored functions\n perf bench, x86: Add alternatives-asm.h wrapper\n x86, 64-bit: Fix copy_[to/from]_user() checks for the userspace address limit\n x86, mem: memset_64.S: Optimize memset by enhanced REP MOVSB/STOSB\n x86, mem: memmove_64.S: Optimize memmove by enhanced REP MOVSB/STOSB\n ...\n" }, { "commit": "c3305257cd4df63e03e21e331a0140ae9c0faccc", "tree": "d5b9609bf96f004a9efe0aca326983489718751e", "parents": [ "2cba3ffb9a9db3874304a1739002d053d53c738b" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 19 14:01:42 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 19 14:30:50 2011 +0200" }, "message": "perf stat: Add more cache-miss percentage printouts\n\nPrint out the cache-miss percentage as well if the cache refs were\ncollected, for all the generic cache event types.\n\nBefore:\n\n 11,103,723,230 dTLB-loads # 622.471 M/sec ( +- 0.30% )\n 87,065,337 dTLB-load-misses # 4.881 M/sec ( +- 0.90% )\n\nAfter:\n\n 11,353,713,242 dTLB-loads # 626.020 M/sec ( +- 0.35% )\n 113,393,472 dTLB-load-misses # 1.00% of all dTLB cache hits ( +- 0.49% )\n\nAlso ASCII color highlight too high percentages, them when it\u0027s executed on the console.\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/n/tip-lkhwxsevdbd9a8nymx0vxc3y@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2cba3ffb9a9db3874304a1739002d053d53c738b", "tree": "a81c614ea1be6db95c2d0d1a1e57287a631e9c6b", "parents": [ "b313207286a78abac19f1dd2721292eae598b0f5" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 19 13:30:56 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 19 14:29:51 2011 +0200" }, "message": "perf stat: Add -d -d and -d -d -d options to show more CPU events\n\nPrint even more detailed statistics if requested via perf stat -d:\n\n -d: detailed events, L1 and LLC data cache\n -d -d: more detailed events, dTLB and iTLB events\n -d -d -d: very detailed events, adding prefetch events\n\nFull output looks like this now:\n\n Performance counter stats for \u0027/home/mingo/hackbench 10\u0027 (5 runs):\n\n 1703.674707 task-clock # 8.709 CPUs utilized ( +- 4.19% )\n 49,068 context-switches # 0.029 M/sec ( +- 16.66% )\n 8,303 CPU-migrations # 0.005 M/sec ( +- 24.90% )\n 17,397 page-faults # 0.010 M/sec ( +- 0.46% )\n 2,345,389,239 cycles # 1.377 GHz ( +- 4.61% ) [55.90%]\n 1,884,503,527 stalled-cycles-frontend # 80.35% frontend cycles idle ( +- 5.67% ) [50.39%]\n 743,919,737 stalled-cycles-backend # 31.72% backend cycles idle ( +- 8.75% ) [49.91%]\n 1,314,416,379 instructions # 0.56 insns per cycle\n # 1.43 stalled cycles per insn ( +- 2.53% ) [60.87%]\n 272,592,567 branches # 160.003 M/sec ( +- 1.74% ) [56.56%]\n 3,794,846 branch-misses # 1.39% of all branches ( +- 6.59% ) [58.50%]\n 449,982,778 L1-dcache-loads # 264.125 M/sec ( +- 2.47% ) [49.88%]\n 22,404,961 L1-dcache-load-misses # 4.98% of all L1-dcache hits ( +- 6.08% ) [55.05%]\n 6,204,750 LLC-loads # 3.642 M/sec ( +- 8.91% ) [43.75%]\n 1,837,411 LLC-load-misses # 1.078 M/sec ( +- 7.27% ) [12.07%]\n 411,440,421 L1-icache-loads # 241.502 M/sec ( +- 5.60% ) [36.52%]\n 27,556,832 L1-icache-load-misses # 16.175 M/sec ( +- 7.46% ) [46.72%]\n 464,067,627 dTLB-loads # 272.392 M/sec ( +- 4.46% ) [54.17%]\n 10,765,648 dTLB-load-misses # 6.319 M/sec ( +- 3.18% ) [48.68%]\n 1,273,080,386 iTLB-loads # 747.256 M/sec ( +- 3.38% ) [47.53%]\n 117,481 iTLB-load-misses # 0.069 M/sec ( +- 14.99% ) [47.01%]\n 4,590,653 L1-dcache-prefetches # 2.695 M/sec ( +- 4.49% ) [46.19%]\n 1,712,660 L1-dcache-prefetch-misses # 1.005 M/sec ( +- 3.75% ) [44.82%]\n\n 0.195622057 seconds time elapsed ( +- 6.84% )\n\nAlso clean up the attribute construction code to be appending, and factor\nit out into add_default_attributes().\n\nTweak the coverage percentage printout a bit, so that it\u0027s easier to view it\nalongside the +- sttddev colum.\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/n/tip-to3kgu04449s64062val8b62@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b313207286a78abac19f1dd2721292eae598b0f5", "tree": "e020c0511e51bcfeeee449a6bb828a2efabfd7cb", "parents": [ "01ed58abec07633791f03684b937a7e22e00c9bb" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed May 18 21:00:44 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed May 18 21:00:44 2011 +0200" }, "message": "perf bench, x86: Add alternatives-asm.h wrapper\n\nperf bench needs this to build the kernel\u0027s memcpy routine:\n\nIn file included from bench/mem-memcpy-x86-64-asm.S:2:0:\nbench/../../../arch/x86/lib/memcpy_64.S:7:33: fatal error: asm/alternative-asm.h: No such file or directory\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLink: http://lkml.kernel.org/n/tip-c5d41xibgullk8h2280q4gv0@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "94692349c4fc1bc74c19a28f9379509361a06a3b", "tree": "005d42a398d973e1ec52e00512177dce1305e666", "parents": [ "449a66fd1fa75d36dca917704827c40c8f416bca" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Tue May 17 15:36:19 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 17 20:45:36 2011 +0200" }, "message": "perf: Fix multi-event parsing bug\n\nThis patch fixes an issue with event parsing.\nThe following commit appears to have broken the\nability to specify a comma separated list of events:\n\n commit ceb53fbf6dbb1df26d38379a262c6981fe73dd36\n Author: Ingo Molnar \u003cmingo@elte.hu\u003e\n Date: Wed Apr 27 04:06:33 2011 +0200\n\n perf stat: Fail more clearly when an invalid modifier is specified\n\nThis patch fixes this while preserving the desired effect:\n\n$ perf stat -e instructions:u,instructions:k ls /dev/null /dev/null\n\n Performance counter stats for \u0027ls /dev/null\u0027:\n\n 365956 instructions:u # 0.00 insns per cycle\n 731806 instructions:k # 0.00 insns per cycle\n\n 0.001108862 seconds time elapsed\n\n$ perf stat -e task-clock-msecs true\ninvalid event modifier: \u0027-msecs\u0027\nRun \u0027perf list\u0027 for a list of valid events and modifiers\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: acme@redhat.com\nCc: peterz@infradead.org\nCc: fweisbec@gmail.com\nLink: http://lkml.kernel.org/r/20110517133619.GA6999@quad\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "52004ea7ca4c52a219362f973bfd1eb86ff668ce", "tree": "086b6920202cf1c7e014f829350848df71eb9a8c", "parents": [ "9bbeacf52f66d165739a4bbe9c018d17493a74b5", "aece948f5ddd70d70df2f35855c706ef9a4f62e2" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun May 15 19:41:00 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun May 15 19:41:00 2011 +0200" }, "message": "Merge branch \u0027perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 into perf/urgent\n" }, { "commit": "aece948f5ddd70d70df2f35855c706ef9a4f62e2", "tree": "ea2611cea32c492d7b3f4f49ec26df05132d5607", "parents": [ "b90194181988063266f3da0b7bf3e57268c627c8" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sun May 15 09:39:00 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sun May 15 10:02:14 2011 -0300" }, "message": "perf evlist: Fix per thread mmap setup\n\nThe PERF_EVENT_IOC_SET_OUTPUT ioctl was returning -EINVAL when using\n--pid when monitoring multithreaded apps, as we can only share a ring\nbuffer for events on the same thread if not doing per cpu.\n\nFix it by using per thread ring buffers.\n\nTested with:\n\n[root@felicio ~]# tuna -t 26131 -CP | nl\n 1 thread ctxt_switches\n 2 pid SCHED_ rtpri affinity voluntary nonvoluntary cmd\n 3 26131 OTHER 0 0,1 10814276 2397830 chromium-browse\n 4 642 OTHER 0 0,1 14688 0 chromium-browse\n 5 26148 OTHER 0 0,1 713602 115479 chromium-browse\n 6 26149 OTHER 0 0,1 801958 2262 chromium-browse\n 7 26150 OTHER 0 0,1 1271128 248 chromium-browse\n 8 26151 OTHER 0 0,1 3 0 chromium-browse\n 9 27049 OTHER 0 0,1 36796 9 chromium-browse\n 10 618 OTHER 0 0,1 14711 0 chromium-browse\n 11 661 OTHER 0 0,1 14593 0 chromium-browse\n 12 29048 OTHER 0 0,1 28125 0 chromium-browse\n 13 26143 OTHER 0 0,1 2202789 781 chromium-browse\n[root@felicio ~]#\n\nSo 11 threads under pid 26131, then:\n\n[root@felicio ~]# perf record -F 50000 --pid 26131\n\n[root@felicio ~]# grep perf_event /proc/`pidof perf`/maps | nl\n 1 7fa4a2538000-7fa4a25b9000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 2 7fa4a25b9000-7fa4a263a000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 3 7fa4a263a000-7fa4a26bb000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 4 7fa4a26bb000-7fa4a273c000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 5 7fa4a273c000-7fa4a27bd000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 6 7fa4a27bd000-7fa4a283e000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 7 7fa4a283e000-7fa4a28bf000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 8 7fa4a28bf000-7fa4a2940000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 9 7fa4a2940000-7fa4a29c1000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 10 7fa4a29c1000-7fa4a2a42000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 11 7fa4a2a42000-7fa4a2ac3000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n[root@felicio ~]#\n\n11 mmaps, one per thread since we didn\u0027t specify any CPU list, so we need one\nmmap per thread and:\n\n[root@felicio ~]# perf record -F 50000 --pid 26131\n^M\n^C[ perf record: Woken up 79 times to write data ]\n[ perf record: Captured and wrote 20.614 MB perf.data (~900639 samples) ]\n\n[root@felicio ~]# perf report -D | grep PERF_RECORD_SAMPLE | cut -d/ -f2 | cut -d: -f1 | sort -n | uniq -c | sort -nr | nl\n 1\t 371310 26131\n 2\t 96516 26148\n 3\t 95694 26149\n 4\t 95203 26150\n 5\t 7291 26143\n 6\t 87 27049\n 7\t 76 661\n 8\t 60 29048\n 9\t 47 618\n 10\t 43 642\n[root@felicio ~]#\n\nOk, one of the threads, 26151 was quiescent, so no samples there, but all the\nothers are there.\n\nThen, if I specify one CPU:\n\n[root@felicio ~]# perf record -F 50000 --pid 26131 --cpu 1\n^C[ perf record: Woken up 1 times to write data ]\n[ perf record: Captured and wrote 0.680 MB perf.data (~29730 samples) ]\n\n[root@felicio ~]# perf report -D | grep PERF_RECORD_SAMPLE | cut -d/ -f2 | cut -d: -f1 | sort -n | uniq -c | sort -nr | nl\n 1\t 8444 26131\n 2\t 2584 26149\n 3\t 2518 26148\n 4\t 2324 26150\n 5\t 123 26143\n 6\t 9 661\n 7\t 9 29048\n[root@felicio ~]#\n\nThis machine has two cores, so fewer threads appeared on the radar, and:\n\n[root@felicio ~]# grep perf_event /proc/`pidof perf`/maps | nl\n 1 7f484b922000-7f484b9a3000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n[root@felicio ~]#\n\nJust one mmap, as now we can use just one per-cpu buffer instead of the\nper-thread needed in the previous case.\n\nFor global profiling:\n\n[root@felicio ~]# perf record -F 50000 -a\n^C[ perf record: Woken up 26 times to write data ]\n[ perf record: Captured and wrote 7.128 MB perf.data (~311412 samples) ]\n\n[root@felicio ~]# grep perf_event /proc/`pidof perf`/maps | nl\n 1\t7fb49b435000-7fb49b4b6000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n 2\t7fb49b4b6000-7fb49b537000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n[root@felicio ~]#\n\nIt uses per-cpu buffers.\n\nFor just one thread:\n\n[root@felicio ~]# perf record -F 50000 --tid 26148\n^C[ perf record: Woken up 2 times to write data ]\n[ perf record: Captured and wrote 0.330 MB perf.data (~14426 samples) ]\n\n[root@felicio ~]# perf report -D | grep PERF_RECORD_SAMPLE | cut -d/ -f2 | cut -d: -f1 | sort -n | uniq -c | sort -nr | nl\n 1\t 9969 26148\n[root@felicio ~]#\n\n[root@felicio ~]# grep perf_event /proc/`pidof perf`/maps | nl\n 1\t7f286a51b000-7f286a59c000 rwxs 00000000 00:09 4064 anon_inode:[perf_event]\n[root@felicio ~]#\n\nTested-by: David Ahern \u003cdsahern@gmail.com\u003e\nTested-by: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\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: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/r/20110426204401.GB1746@ghostprotocols.net\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "b90194181988063266f3da0b7bf3e57268c627c8", "tree": "2905313dda005f9b1bc8dd7ac3622c7367bddbb5", "parents": [ "f4929bd37208540c2c6f416e9035ff1938f2dbc6" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Apr 25 16:25:20 2011 -0300" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sun May 15 09:32:52 2011 -0300" }, "message": "perf tools: Honour the cpu list parameter when also monitoring a thread list\n\nThe perf_evlist__create_maps was discarding the --cpu parameter when a\n--pid or --tid was specified, fix that.\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\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: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nLink: http://lkml.kernel.org/r/20110426204401.GB1746@ghostprotocols.net\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "9cb5baba5e3acba0994ad899ee908799104c9965", "tree": "d5ff16000256a0bf56279926e6114b4603ede2b4", "parents": [ "7142d17e8f935fa842e9f6eece2281b6d41625d6", "693d92a1bbc9e42681c42ed190bd42b636ca876f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 12 09:36:18 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu May 12 09:36:18 2011 +0200" }, "message": "Merge commit \u0027v2.6.39-rc7\u0027 into sched/core\n" }, { "commit": "2b348a77981227c6b64fb9cf19f7c711a6806bc9", "tree": "a9ef01298f686f979f4ed37d18d39b89ddbb85a8", "parents": [ "932fed4e2e42c3d730c01bb63b1c4f812c533d5b" ], "author": { "name": "Lin Ming", "email": "ming.m.lin@intel.com", "time": "Fri Apr 29 08:41:57 2011 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 10 17:06:23 2011 +0200" }, "message": "perf probe: Fix the missed parameter initialization\n\npubname_callback_param::found should be initialized to 0 in\nfastpath lookup, the structure is on the stack and\nuninitialized otherwise.\n\nSigned-off-by: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@infradead.org\u003e\nLink: http://lkml.kernel.org/r/1304066518-30420-2-git-send-email-ming.m.lin@intel.com\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "932fed4e2e42c3d730c01bb63b1c4f812c533d5b", "tree": "11b1afac3a40d253cdb905c42901edfaae5e196e", "parents": [ "57d524154ffe99d27fb55e0e30ddbad9f4c35806", "693d92a1bbc9e42681c42ed190bd42b636ca876f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 10 17:05:24 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue May 10 17:05:45 2011 +0200" }, "message": "Merge commit \u0027v2.6.39-rc7\u0027 into perf/core\n\nMerge reason: pull in the latest fixes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2d9ff66da61d1365406586a6b1ed53cf61e6143f", "tree": "f35615eb7bb9e648d0c4934bf2cb8a27b299199c", "parents": [ "aeb878b0967550bb56606ae21172bdcbd6afe052" ], "author": { "name": "Jesper Juhl", "email": "jj@chaosbits.net", "time": "Sun Apr 10 19:46:52 2011 +0200" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Tue May 10 10:20:07 2011 +0200" }, "message": "perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c\n\nIncluding \"../../annotate.h\" once in\ntools/perf/util/ui/browsers/annotate.c is enough. No need to do it twice.\n\nSigned-off-by: Jesper Juhl \u003cjj@chaosbits.net\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "174a7b1f9692acad7f0ca2b02f696894201a6d94", "tree": "cb952b7d4fc8de1fe0af01e44992e3245818de81", "parents": [ "63b6a6758eede2f9283c3594265b6e32e75d7456" ], "author": { "name": "Lin Ming", "email": "ming.m.lin@intel.com", "time": "Sat May 07 12:41:14 2011 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat May 07 11:40:59 2011 +0200" }, "message": "perf tools: Makefile: Use gcc to determine ARCH\n\nThe original Makefile uses \"uname -m\" to determine ARCH.\nThis causes problem on x86 when compile perf tool on 32 bit\nuserspace with a 64 bit kernel.\n\n bench/../../../arch/x86/lib/memcpy_64.S: Assembler messages:\n bench/../../../arch/x86/lib/memcpy_64.S:28: Error: bad register name `%rdi\u0027\n\nThis is because \"uname -m\" returns x86_64 and memcpy_64.S is\nincluded in 32 bit build.\n\nReported-by: Riccardo Magliocchetti \u003criccardo.magliocchetti@gmail.com\u003e\nSigned-off-by: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@infradead.org\u003e\nLink: http://lkml.kernel.org/r/1304743274.3132.17.camel@localhost\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a26ac2455ffcf3be5c6ef92bc6df7182700f2114", "tree": "601697c7c3fd152a1b3f29f43d3a028fc8fefd5f", "parents": [ "12f5f524cafef3ab689929b118f2dfb8bf2be321" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Wed Jan 12 14:10:23 2011 -0800" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Thu May 05 23:16:54 2011 -0700" }, "message": "rcu: move TREE_RCU from softirq to kthread\n\nIf RCU priority boosting is to be meaningful, callback invocation must\nbe boosted in addition to preempted RCU readers. Otherwise, in presence\nof CPU real-time threads, the grace period ends, but the callbacks don\u0027t\nget invoked. If the callbacks don\u0027t get invoked, the associated memory\ndoesn\u0027t get freed, so the system is still subject to OOM.\n\nBut it is not reasonable to priority-boost RCU_SOFTIRQ, so this commit\nmoves the callback invocations to a kthread, which can be boosted easily.\n\nAlso add comments and properly synchronized all accesses to\nrcu_cpu_kthread_task, as suggested by Lai Jiangshan.\n\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nReviewed-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\n" } ], "next": "c63ca0c01d73563d4e2ab174bb3dd1e5efb907e6" }