perf tools: Add sort by src line/number
authorArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 30 May 2012 13:33:24 +0000 (10:33 -0300)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 19 Jun 2012 16:06:18 +0000 (13:06 -0300)
commit409a8be61560c5875816da6dcb0c575d78145a5c
treec840e43aba2c75171d656c458432ce1f8008c99a
parente227051b13956b8f71c0abecc41ad351e64671c8
perf tools: Add sort by src line/number

Using addr2line for now, requires debuginfo, needs more work to support
detached debuginfo, aka foo-debuginfo packages.

Example:

[root@sandy ~]# perf record -a sleep 3
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.555 MB perf.data (~24236 samples) ]
[root@sandy ~]# perf report -s dso,srcline 2>&1 | grep -v ^# | head -5
    22.41%  [kernel.kallsyms]  /home/git/linux/drivers/idle/intel_idle.c:280
     4.79%  [kernel.kallsyms]  /home/git/linux/drivers/cpuidle/cpuidle.c:148
     4.78%  [kernel.kallsyms]  /home/git/linux/arch/x86/include/asm/atomic64_64.h:121
     4.49%  [kernel.kallsyms]  /home/git/linux/kernel/sched/core.c:1690
     4.30%  [kernel.kallsyms]  /home/git/linux/include/linux/seqlock.h:90
[root@sandy ~]#

[root@sandy ~]# perf top -U -s dso,symbol,srcline
Samples: 1K of event 'cycles', Event count (approx.): 589617389
 18.66%  [kernel]  [k] copy_user_generic_unrolled   /home/git/linux/arch/x86/lib/copy_user_64.S:143
  7.83%  [kernel]  [k] clear_page                   /home/git/linux/arch/x86/lib/clear_page_64.S:39
  6.59%  [kernel]  [k] clear_page                   /home/git/linux/arch/x86/lib/clear_page_64.S:38
  3.66%  [kernel]  [k] page_fault                   /home/git/linux/arch/x86/kernel/entry_64.S:1379
  3.25%  [kernel]  [k] clear_page                   /home/git/linux/arch/x86/lib/clear_page_64.S:40
  3.12%  [kernel]  [k] clear_page                   /home/git/linux/arch/x86/lib/clear_page_64.S:37
  2.74%  [kernel]  [k] clear_page                   /home/git/linux/arch/x86/lib/clear_page_64.S:36
  2.39%  [kernel]  [k] clear_page                   /home/git/linux/arch/x86/lib/clear_page_64.S:43
  2.12%  [kernel]  [k] ioread32                     /home/git/linux/lib/iomap.c:90
  1.51%  [kernel]  [k] copy_user_generic_unrolled   /home/git/linux/arch/x86/lib/copy_user_64.S:144
  1.19%  [kernel]  [k] copy_user_generic_unrolled   /home/git/linux/arch/x86/lib/copy_user_64.S:154

Suggested-by: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-pdmqbng9twz06jzkbgtuwbp8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/Documentation/perf-report.txt
tools/perf/Documentation/perf-top.txt
tools/perf/util/hist.h
tools/perf/util/sort.c
tools/perf/util/sort.h