Arnaldo Carvalho de Melo 6920e2854e perf annotate browser: Show extra title line with event information ... So at the top we'll have two lines, like this, from 'perf report': # perf report --group --ignore-vmlinux ===================================================================================================== Samples: 46 of events 'cycles', 4000 Hz, Event count (approx.): 5154895 _raw_spin_lock_irqsave /proc/kcore Percent │ nop │ push %rbx 0.00 14.29 0.00 │ pushfq 9.09 0.00 0.00 │ pop %rax 9.09 0.00 20.00 │ nop │ mov %rax,%rbx │ cli 4.55 7.14 0.00 │ nop │ xor %eax,%eax │ mov $0x1,%edx │ lock cmpxchg %edx,(%rdi) 77.27 78.57 70.00 │ test %eax,%eax │ ↓ jne 2b │ mov %rbx,%rax 0.00 0.00 10.00 │ pop %rbx │ ← retq │2b: mov %eax,%esi │ → callq queued_spin_lock_slowpath │ mov %rbx,%rax │ pop %rbx Press 'h' for help on│key bindings ===================================================================================================== 9.09 + 9.09 + 4.55 + 77.27 = 100 14.29 + 7.14 + 78.57 = 100 20 + 70 + 10 = 100 We can do the math by using 't' to toggle from 'percent' to nr ===================================================================================================== Samples: 46 of events 'cycles', 4000 Hz, Event count (approx.): 5154895 _raw_spin_lock_irqsave /proc/kcore Period │ nop │ push %rbx 0 79273 0 │ pushfq 190455 0 0 │ pop %rax 198038 0 3045 │ nop │ mov %rax,%rbx │ cli 217233 32562 0 │ nop │ xor %eax,%eax │ mov $0x1,%edx │ lock cmpxchg %edx,(%rdi) 3421649 979174 28273 │ test %eax,%eax │ ↓ jne 2b │ mov %rbx,%rax 0 0 5193 │ pop %rbx │ ← retq │2b: mov %eax,%esi │ → callq queued_spin_lock_slowpath │ mov %rbx,%rax │ pop %rbx Press 'h' for help on│key bindings ===================================================================================================== 79273 + 190455 + 198038 + 3045 + 217233 + 32562 + 3421649 + 979174 + 28273 + 5193 = 5154895 Or number of samples: ===================================================================================================== ooSamples: 46 of events 'cycles', 4000 Hz, Event count (approx.): 5154895 _raw_spin_lock_irqsave /proc/kcore Samples │ nop │ push %rbx 0 2 0 │ pushfq 2 0 0 │ pop %rax 2 0 2 │ nop │ mov %rax,%rbx │ cli 1 1 0 │ nop │ xor %eax,%eax │ mov $0x1,%edx │ lock cmpxchg %edx,(%rdi) 17 11 7 │ test %eax,%eax │ ↓ jne 2b │ mov %rbx,%rax 0 0 1 │ pop %rbx │ ← retq │2b: mov %eax,%esi │ → callq queued_spin_lock_slowpath │ mov %rbx,%rax │ pop %rbx Press 'h' for help on key bindings ===================================================================================================== 2 + 2 + 2 + 2 + 1 + 1 + 17 + 11 + 7 + 1 = 46 Suggested-by: Martin Liška <mliska@suse.cz> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196935 Link: https://lkml.kernel.org/n/tip-ezccyxld50wtwyt66np6aomo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2018-04-03 15:23:11 -03:00
..
browsers	perf annotate browser: Show extra title line with event information	2018-04-03 15:23:11 -03:00
gtk	perf annotate: Get the cpuid from evsel->evlist->env in symbol__annotate()	2017-12-27 12:15:51 -03:00
stdio	perf report: Show zero counters as well in 'perf report --stat'	2018-03-16 13:55:36 -03:00
tui	Merge branch 'linus' into perf/core, to fix conflicts	2017-11-07 10:30:18 +01:00
browser.c	perf ui browser: Move the extra title lines from the hists browser	2018-04-03 10:24:26 -03:00
browser.h	perf ui browser: Move the extra title lines from the hists browser	2018-04-03 10:24:26 -03:00
Build	perf build: Add slang objects building	2015-02-12 11:48:13 -03:00
helpline.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
helpline.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hist.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
keysyms.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
libslang.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
progress.c	Merge branch 'linus' into perf/core, to fix conflicts	2017-11-07 10:30:18 +01:00
progress.h	Merge branch 'linus' into perf/core, to fix conflicts	2017-11-07 10:30:18 +01:00
setup.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ui.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
util.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
util.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00