android_kernel_samsung_univ.../tools/perf/Documentation
Namhyung Kim f214833054 perf report: Add --percentage option
The --percentage option is for controlling overhead percentage
displayed.  It can only receive either of "relative" or "absolute".

"relative" means it's relative to filtered entries only so that the
sum of shown entries will be always 100%.  "absolute" means it retains
the original value before and after the filter is applied.

  $ perf report -s comm
  # Overhead       Command
  # ........  ............
  #
      74.19%           cc1
       7.61%           gcc
       6.11%            as
       4.35%            sh
       4.14%          make
       1.13%        fixdep
  ...

  $ perf report -s comm -c cc1,gcc --percentage absolute
  # Overhead       Command
  # ........  ............
  #
      74.19%           cc1
       7.61%           gcc

  $ perf report -s comm -c cc1,gcc --percentage relative
  # Overhead       Command
  # ........  ............
  #
      90.69%           cc1
       9.31%           gcc

Note that it has zero effect if no filter was applied.

Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1397145720-8063-3-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-16 17:16:03 +02:00
..
android.txt
asciidoc.conf
examples.txt
jit-interface.txt
Makefile
manpage-1.72.xsl
manpage-base.xsl
manpage-bold-literal.xsl
manpage-normal.xsl
manpage-suppress-sp.xsl
perf-annotate.txt
perf-archive.txt
perf-bench.txt perf bench: Update manpage to mention numa and futex 2014-04-14 12:55:41 +02:00
perf-buildid-cache.txt
perf-buildid-list.txt
perf-diff.txt
perf-evlist.txt
perf-help.txt
perf-inject.txt
perf-kmem.txt
perf-kvm.txt
perf-list.txt
perf-lock.txt
perf-mem.txt perf mem: Clarify load-latency in documentation 2014-03-14 11:20:44 -03:00
perf-probe.txt perf probe: Clarify x86 register naming for perf probe 2014-03-14 11:20:44 -03:00
perf-record.txt perf record: Rename --initial-delay to --delay 2014-01-14 17:58:12 -03:00
perf-report.txt perf report: Add --percentage option 2014-04-16 17:16:03 +02:00
perf-sched.txt
perf-script-perl.txt
perf-script-python.txt
perf-script.txt
perf-stat.txt perf stat: Fix --delay option in man page 2014-01-13 10:06:24 -03:00
perf-test.txt
perf-timechart.txt perf timechart: Add --highlight option 2013-12-17 16:33:55 -03:00
perf-top.txt perf top: Fix documentation of invalid -s option 2014-04-14 12:54:59 +02:00
perf-trace.txt
perf.txt
perfconfig.example