Messages in this thread Patch in this message | | | Date | Tue, 22 Dec 2009 21:06:04 +0800 | From | Xiao Guangrong <> | Subject | [PATCH v2 4/5] perf/timer: add document for 'perf timer' |
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Add document for 'perf timer', it let people know how to use it
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> --- tools/perf/Documentation/perf-timer.txt | 50 +++++++++++++++++++++++++++++++ 1 files changed, 50 insertions(+), 0 deletions(-) create mode 100644 tools/perf/Documentation/perf-timer.txt
diff --git a/tools/perf/Documentation/perf-timer.txt b/tools/perf/Documentation/perf-timer.txt new file mode 100644 index 0000000..5bd26d4 --- /dev/null +++ b/tools/perf/Documentation/perf-timer.txt @@ -0,0 +1,50 @@ +perf-timer(1) +============== + +NAME +---- +perf-timer - Tool to trace/measure timer properties + +SYNOPSIS +-------- +[verse] +'perf timer' {record|report} [<options>] + +DESCRIPTION +----------- +There are two variants of perf timer: + + 'perf timer record <command>' to record the timer events + of an arbitrary workload. + + 'perf timer report' to report number of activated/expired/canceled + timers, timer latency and timer function runtime. + +OPTIONS +------- +-D:: +--dump-raw-trace=:: + Display verbose dump of the sched data. + +-i <file>:: +--input=<file>:: + Select the input file (default: perf.data) + +-s <key[,key2...]>:: +--sort=<key[,key2...]>:: + Sort the output (default: type, avg-lat, max-lat, + avg-runtime, max-runtime) + +--print-lat:: + Print timer latency + +--print-runtime:: + Print timer function runtime + +--type:: + Timer type selector, you can specify one or more types + (timer, hrtimer, itimer-real, itimer-virtual, itimer-prof) + +SEE ALSO +-------- +linkperf:perf-record[1] -- 1.6.1.2
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