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587782c52a
When --state option is given, the summary will show total run, sleep,
iowait, preempt and delay time instead of statistics of runtime.
$ perf sched timehist -s --state
Wait-time summary
comm parent sched-in run-time sleep iowait preempt delay
(count) (msec) (msec) (msec) (msec) (msec)
---------------------------------------------------------------------
systemd[1] 0 3 0.497 1.685 0.000 0.000 0.061
ksoftirqd/0[3] 2 21 0.434 989.948 0.000 0.000 0.325
rcu_preempt[7] 2 28 0.386 993.211 0.000 0.000 0.712
migration/0[10] 2 12 0.126 50.174 0.000 0.000 0.044
watchdog/0[11] 2 1 0.009 0.000 0.000 0.000 0.016
migration/1[13] 2 2 0.029 11.755 0.000 0.000 0.007
<SNIP>
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/20170113104523.31212-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.