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authorNamhyung Kim <namhyung@kernel.org>2014-03-04 10:46:34 +0900
committerJiri Olsa <jolsa@kernel.org>2014-05-21 11:45:35 +0200
commita7d945bc91602f916d2d0c794c179d9a784859e7 (patch)
tree40b0b84ec5ec0a624cbad51b7342a6ae44903def /tools/perf/Documentation
parent22af969e8cfc6ea46d3e1a774a16d7e19b8cf4db (diff)
downloadlinux-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.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 9babe915b6c4..a1b5185402d5 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