Messages in this thread Patch in this message | | | Date | Thu, 2 Dec 2010 11:46:01 GMT | From | tip-bot for Shawn Bohrer <> | Subject | [tip:perf/core] perf sched: Document missing options |
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Commit-ID: 1eacc94a66ce347abbf75f223361b21461331383 Gitweb: http://git.kernel.org/tip/1eacc94a66ce347abbf75f223361b21461331383 Author: Shawn Bohrer <shawn.bohrer@gmail.com> AuthorDate: Tue, 30 Nov 2010 19:57:18 -0600 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Wed, 1 Dec 2010 18:22:48 -0200
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: Shawn Bohrer <shawn.bohrer@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/Documentation/perf-sched.txt | 18 ++++++++++++++++-- 1 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/tools/perf/Documentation/perf-sched.txt b/tools/perf/Documentation/perf-sched.txt index 8417644..46822d5 100644 --- a/tools/perf/Documentation/perf-sched.txt +++ b/tools/perf/Documentation/perf-sched.txt @@ -8,11 +8,11 @@ perf-sched - Tool to trace/measure scheduler properties (latencies) SYNOPSIS -------- [verse] -'perf sched' {record|latency|replay|trace} +'perf sched' {record|latency|map|replay|trace} DESCRIPTION ----------- -There are four variants of perf sched: +There are five variants of perf sched: 'perf sched record <command>' to record the scheduling events of an arbitrary workload. @@ -30,8 +30,22 @@ There are four variants of perf sched: of the workload as it occurred when it was recorded - and can repeat 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 ------- +-i:: +--input=<file>:: + Input file name. (default: perf.data) + +-v:: +--verbose:: + Be more verbose. (show symbol address, etc) + -D:: --dump-raw-trace=:: Display verbose dump of the sched data.
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