Commit 1eacc94a authored by Shawn Bohrer's avatar Shawn Bohrer Committed by Arnaldo Carvalho de Melo

perf sched: Document missing options

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1291168642-11402-11-git-send-email-shawn.bohrer@gmail.com>
Signed-off-by: default avatarShawn Bohrer <shawn.bohrer@gmail.com>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent e04fffc3
...@@ -8,11 +8,11 @@ perf-sched - Tool to trace/measure scheduler properties (latencies) ...@@ -8,11 +8,11 @@ perf-sched - Tool to trace/measure scheduler properties (latencies)
SYNOPSIS SYNOPSIS
-------- --------
[verse] [verse]
'perf sched' {record|latency|replay|trace} 'perf sched' {record|latency|map|replay|trace}
DESCRIPTION DESCRIPTION
----------- -----------
There are four variants of perf sched: There are five variants of perf sched:
'perf sched record <command>' to record the scheduling events 'perf sched record <command>' to record the scheduling events
of an arbitrary workload. of an arbitrary workload.
...@@ -30,8 +30,22 @@ There are four variants of perf sched: ...@@ -30,8 +30,22 @@ There are four variants of perf sched:
of the workload as it occurred when it was recorded - and can repeat of the workload as it occurred when it was recorded - and can repeat
it a number of times, measuring its performance.) it a number of times, measuring its performance.)
'perf sched map' to print a textual context-switching outline of
workload captured via perf sched record. Columns stand for
individual CPUs, and the two-letter shortcuts stand for tasks that
are running on a CPU. A '*' denotes the CPU that had the event, and
a dot signals an idle CPU.
OPTIONS OPTIONS
------- -------
-i::
--input=<file>::
Input file name. (default: perf.data)
-v::
--verbose::
Be more verbose. (show symbol address, etc)
-D:: -D::
--dump-raw-trace=:: --dump-raw-trace=::
Display verbose dump of the sched data. Display verbose dump of the sched data.
......
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