diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2014-03-04 10:46:34 +0900 |
|---|---|---|
| committer | Jiri Olsa <jolsa@kernel.org> | 2014-05-21 11:45:35 +0200 |
| commit | a7d945bc91602f916d2d0c794c179d9a784859e7 (patch) | |
| tree | 40b0b84ec5ec0a624cbad51b7342a6ae44903def /tools/perf/Documentation | |
| parent | 22af969e8cfc6ea46d3e1a774a16d7e19b8cf4db (diff) | |
| download | op-kernel-dev-a7d945bc91602f916d2d0c794c179d9a784859e7.zip op-kernel-dev-a7d945bc91602f916d2d0c794c179d9a784859e7.tar.gz | |
perf report: Add -F option to specify output fields
The -F/--fields option is to allow user setup output field in any
order. It can receive any sort keys and following (hpp) fields:
overhead, overhead_sys, overhead_us, sample and period
If guest profiling is enabled, overhead_guest_{sys,us} will be
available too.
The output fields also affect sort order unless you give -s/--sort
option. And any keys specified on -s option, will also be added to
the output field list automatically.
$ perf report -F sym,sample,overhead
...
# Symbol Samples Overhead
# .......................... ............ ........
#
[.] __cxa_atexit 2 2.50%
[.] __libc_csu_init 4 5.00%
[.] __new_exitfn 3 3.75%
[.] _dl_check_map_versions 1 1.25%
[.] _dl_name_match_p 4 5.00%
[.] _dl_setup_hash 1 1.25%
[.] _dl_sysdep_start 1 1.25%
[.] _init 5 6.25%
[.] _setjmp 6 7.50%
[.] a 8 10.00%
[.] b 8 10.00%
[.] brk 1 1.25%
[.] c 8 10.00%
Note that, the example output above is captured after applying next
patch which fixes sort/comparing behavior.
Requested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1400480762-22852-12-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 9babe91..a1b5185 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -107,6 +107,16 @@ OPTIONS And default sort keys are changed to comm, dso_from, symbol_from, dso_to and symbol_to, see '--branch-stack'. +-F:: +--fields=:: + Specify output field - multiple keys can be specified in CSV format. + Following fields are available: + overhead, overhead_sys, overhead_us, sample and period. + Also it can contain any sort key(s). + + By default, every sort keys not specified in -F will be appended + automatically. + -p:: --parent=<regex>:: A regex filter to identify parent. The parent is a caller of this |
