)]}' { "log": [ { "commit": "88978e562302c836c1c4597700c79d971e93abc0", "tree": "7fe78222f9051216fabe6df27b8236dc8071c93e", "parents": [ "4ded2b250f1fbba4e414d17dc55ee513485c0aa1" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Mar 23 14:33:58 2010 -0300" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 23 20:33:08 2010 +0100" }, "message": "perf archive: Explain how to use the generated tarball\n\n[root@doppio ~]# perf archive\n Now please run:\n\n $ tar xvf perf.data.tar.bz2 -C ~/.debug\n\n wherever you need to run \u0027perf report\u0027 on.\n [root@doppio ~]#\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1269365638-10223-1-git-send-email-acme@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6630125419ef37ff8781713c5e9d416f2a4ba357", "tree": "54b375e421b66cd9338359deb7a78635db36ee83", "parents": [ "b622d644c7d61a5cb95b74e7b143c263bed21f0a" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Mar 02 15:25:38 2010 -0300" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 02 19:27:46 2010 +0100" }, "message": "perf archive: Don\u0027t try to collect files without a build-id\n\nTo avoid these error:\n\n [root@doppio ~]# perf archive\n tar: .build-id/00/00000000000000000000000000000000000000: Cannot stat:\n No such file or directory\n tar: .build-id/00/00000000000000000000000000000000000000: Cannot stat:\n No such file or directory\n tar: .build-id/00/00000000000000000000000000000000000000: Cannot stat:\n No such file or directory\n tar: .build-id/00/00000000000000000000000000000000000000: Cannot stat:\n No such file or directory\n tar: Exiting with failure status due to previous errors\n [root@doppio ~]#\n\nMore work is needed to support archiving symtabs for binaries\nwithout a build-id, perhaps creating a perf.data UUID + adding\nbuild-ids for the binaries copied into the cache and then have\nthis perf.data session UUID be a directory with symlinks to the\nby now calculated build-id of the files inside it.\n\nOr just do an extra pass and insert the calculated build-ids in\nthe perf.data header.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2c5851747bcf751908c02e253cb7582d342b4612", "tree": "83a6853545a1328dbb44d70d2130a4e2cb46eaea", "parents": [ "460848fceffc91652b2d36d19db4ac40d12fb607" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Jan 15 13:17:52 2010 -0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jan 16 10:58:49 2010 +0100" }, "message": "perf archive: Add helper script to package files needed to do analysis\n\nIt uses \u0027perf buildid-list --with-hits\u0027 to create a tarball with\nwhat is needed to have in the destination machine ~/.debug\nhierarchy to properly decode the perf.data file specified.\n\nHere is an example where a perf.data file collected on a x86-64\nmachine running Fedora 12 is used and then the data is packaged,\ntransferred and decoded on a PARISC64 machine running Debian\nTesting, 32-bit userspace:\n\n[root@doppio linux-2.6-tip]# uname -a\nLinux doppio.ghostprotocols.net 2.6.33-rc4-tip+ #3 SMP Wed Jan 13 11:58:15 BRST 2010 x86_64 x86_64 x86_64 GNU/Linux\n[root@doppio linux-2.6-tip]# perf archive\n[root@doppio linux-2.6-tip]# ls -la perf.data*\n-rw------- 1 root root 737696 2010-01-14 23:36 perf.data\n-rw-r--r-- 1 root root 8840025 2010-01-15 12:27 perf.data.tar.bz2\n[root@doppio linux-2.6-tip]# scp perf.data.* parisc64:.\nPassword:\nperf.data.tar.bz2 100% 8633KB 1.4MB/s 00:06\n[root@doppio linux-2.6-tip]# ssh parisc64\nPassword:\nLinux parisc 2.6.19-g2bbf29ac-dirty #1 Sun Dec 3 17:24:04 BRST 2006 parisc64\n\nThe programs included with the Debian GNU/Linux system are free software;\nthe exact distribution terms for each program are described in the\nindividual files in /usr/share/doc/*/copyright.\n\nDebian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent\npermitted by applicable law.\nLast login: Thu Jan 14 11:23:24 2010 from d\nparisc:~# uname -a\nLinux parisc 2.6.19-g2bbf29ac-dirty #1 Sun Dec 3 17:24:04 BRST 2006 parisc64 GNU/Linux\nparisc:~# mkdir .debug\nparisc:~# tar xvf perf.data.tar.bz2 -C ~/.debug\ntar: Record size \u003d 8 blocks\n.build-id/74/f9930ee94475b6b3238caf3725a50d59cb994b\n[kernel.kallsyms]/74f9930ee94475b6b3238caf3725a50d59cb994b\n.build-id/9f/fdcac0a7935922d1f04b6cc9029dfef0f066ef\nlib/modules/2.6.33-rc4-tip+/kernel/arch/x86/crypto/aes-x86_64.ko/9ffdcac0a7935922d1f04b6cc9029dfef0f066ef\n.build-id/3a/af89c32ebfc438ff546c93597d41788e3e65f3\nlib/modules/2.6.33-rc4-tip+/kernel/drivers/net/wireless/iwlwifi/iwl3945.ko/3aaf89c32ebfc438ff546c93597d41788e3e65f3\n.build-id/19/f46033f73e1ec612937189bb118c5daba5a0c8\nlib/modules/2.6.33-rc4-tip+/kernel/net/mac80211/mac80211.ko/19f46033f73e1ec612937189bb118c5daba5a0c8\n.build-id/17/72f014a7a7272859655acb0c64a20ab20b75ee\nlib/modules/2.6.33-rc4-tip+/kernel/drivers/net/e1000e/e1000e.ko/1772f014a7a7272859655acb0c64a20ab20b75ee\n.build-id/eb/4ec8fa8b2a5eb18cad173c92f27ed8887ed1c1\nlib64/libc-2.10.2.so/eb4ec8fa8b2a5eb18cad173c92f27ed8887ed1c1\n.build-id/5c/68f7afeb33309c78037e374b0deee84dd441f6\nlib64/libpthread-2.10.2.so/5c68f7afeb33309c78037e374b0deee84dd441f6\n.build-id/e9/c9ad5c138ef882e4507d2605645b597da43873\nbin/dbus-daemon/e9c9ad5c138ef882e4507d2605645b597da43873\n.build-id/bc/da7d09eb6c9ee380dae0ed3d591d4311decc31\nlib64/libdbus-1.so.3.4.0/bcda7d09eb6c9ee380dae0ed3d591d4311decc31\n.build-id/7c/c449a77f48b85d6088114000e970ced613bed8\nusr/lib64/libcrypto.so.0.9.8k/7cc449a77f48b85d6088114000e970ced613bed8\n.build-id/fd/d1ccd1ff7917ab020653147ab3bacf0a85b5b9\nlib64/libglib-2.0.so.0.2000.5/fdd1ccd1ff7917ab020653147ab3bacf0a85b5b9\n.build-id/e4/417ebb8762e5f2eee93c8011a71115ff5edad8\nlib64/libgobject-2.0.so.0.2000.5/e4417ebb8762e5f2eee93c8011a71115ff5edad8\n.build-id/93/1e49461f6df99104f0febcc52f6fed5e2efce6\nusr/sbin/sshd/931e49461f6df99104f0febcc52f6fed5e2efce6\n.build-id/da/b5f724c088f89fbd8304da553ed6cb30bbec96\nusr/lib64/libgdk-x11-2.0.so.0.1600.6/dab5f724c088f89fbd8304da553ed6cb30bbec96\n.build-id/f2/037a091ef36b591187a858d75e203690ea9409\nusr/sbin/openvpn/f2037a091ef36b591187a858d75e203690ea9409\n.build-id/a8/e4f743b40fb1fd8b85e2f9b88d93b661472b8f\nbin/find/a8e4f743b40fb1fd8b85e2f9b88d93b661472b8f\n.build-id/81/120aada06e68b1e85882925a0fc6d7345ef59a\nhome/acme/bin/perf/81120aada06e68b1e85882925a0fc6d7345ef59a\nparisc:~# perf report 2\u003e /dev/null | head -25\n 9.07% find find [.] 0x0000000000fb0e\n 3.29% perf libc-2.10.2.so [.] __GI_strcmp\n 3.19% find [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore\n 2.70% find libc-2.10.2.so [.] __GI_memmove\n 2.62% perf [kernel.kallsyms] [k] vsnprintf\n 2.03% find libc-2.10.2.so [.] _int_malloc\n 2.02% perf [kernel.kallsyms] [k] format_decode\n 1.70% find [kernel.kallsyms] [k] n_tty_write\n 1.70% find [kernel.kallsyms] [k] half_md4_transform\n 1.67% find libc-2.10.2.so [.] _IO_vfprintf_internal\n 1.66% perf [kernel.kallsyms] [k] audit_free_aux\n 1.62% swapper [kernel.kallsyms] [k] mwait_idle_with_hints\n 1.58% find [kernel.kallsyms] [k] __kmalloc\n 1.35% find [kernel.kallsyms] [k] sched_clock_local\n 1.35% find [kernel.kallsyms] [k] ext4_check_dir_entry\n 1.35% find [kernel.kallsyms] [k] ext4_htree_store_dirent\n 1.35% find [kernel.kallsyms] [k] sys_write\n 1.35% find [e1000e] [k] e1000_clean\n 1.35% find [kernel.kallsyms] [k] _atomic_dec_and_lock\n 1.34% find [kernel.kallsyms] [k] __d_lookup\nparisc:~#\n\nProbably the next step is to have \u0027perf report\u0027 notice that there is a\nperf.data.tar.bz2 file in the same directory and look if it was already\nadded to ~/.debug/.\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1263568672-30323-2-git-send-email-acme@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ] }