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authorNamhyung Kim <namhyung@kernel.org>2017-01-13 19:45:22 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-01-17 11:36:44 -0300
commit414e050c68ec2a3dd815544ea48ff6016f1a7a11 (patch)
treee5b242a6167bc5dd384c7b5fdf715606d4cd58ad /tools/perf/Documentation
parent941bdea79e194dec7e7b42780aa5620020548f8a (diff)
perf sched timehist: Add --state option
The --state option is to show task state when switched out. The state is printed as a single character like in the /proc but I added 'I' for idle state rather than 'R'. $ perf sched timehist --state | head Samples do not have callchains. time cpu task name wait time sch delay run time state [tid/pid] (msec) (msec) (msec) -------- --- ----------------------- -------- ------------------ ----- 1.753791 [3] <idle> 0.000 0.000 0.000 I 1.753834 [1] perf[27469] 0.000 0.000 0.000 S 1.753904 [3] perf[27470] 0.000 0.006 0.112 S 1.753914 [1] <idle> 0.000 0.000 0.079 I 1.753915 [3] migration/3[23] 0.000 0.002 0.011 S 1.754287 [2] <idle> 0.000 0.000 0.000 I 1.754335 [2] transmission[1773/1739] 0.000 0.004 0.047 S Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170113104523.31212-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r--tools/perf/Documentation/perf-sched.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-sched.txt b/tools/perf/Documentation/perf-sched.txt
index 76173969ab80..d33deddb0146 100644
--- a/tools/perf/Documentation/perf-sched.txt
+++ b/tools/perf/Documentation/perf-sched.txt
@@ -143,6 +143,8 @@ OPTIONS for 'perf sched timehist'
stop time is not given (i.e, time string is 'x.y,') then analysis goes
to end of file.
+--state::
+ Show task state when it switched out.
SEE ALSO
--------