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author | James Morris <jmorris@namei.org> | 2011-01-10 09:46:24 +1100 |
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committer | James Morris <jmorris@namei.org> | 2011-01-10 09:46:24 +1100 |
commit | d2e7ad19229f982fc1eb731827d82ceac90abfb3 (patch) | |
tree | 98a3741b4d4b27a48b3c7ea9babe331e539416a8 /tools/perf/Documentation/perf-sched.txt | |
parent | d03a5d888fb688c832d470b749acc5ed38e0bc1d (diff) | |
parent | 0c21e3aaf6ae85bee804a325aa29c325209180fd (diff) | |
download | lwn-d2e7ad19229f982fc1eb731827d82ceac90abfb3.tar.gz lwn-d2e7ad19229f982fc1eb731827d82ceac90abfb3.zip |
Merge branch 'master' into next
Conflicts:
security/smack/smack_lsm.c
Verified and added fix by Stephen Rothwell <sfr@canb.auug.org.au>
Ok'd by Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'tools/perf/Documentation/perf-sched.txt')
-rw-r--r-- | 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 8417644a6166..46822d5fde1c 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. |