path: root/tools
diff options
authorShawn Bohrer <>2010-11-30 19:57:18 -0600
committerArnaldo Carvalho de Melo <>2010-12-01 18:22:48 -0200
commit1eacc94a66ce347abbf75f223361b21461331383 (patch)
tree941510c303b3b1e8378b594546f7eff4441f784f /tools
parente04fffc321aeebab4962cfc120952272f2d1df98 (diff)
perf sched: Document missing options
Cc: Ingo Molnar <> Cc: Paul Mackerras <> Cc: Peter Zijlstra <> LKML-Reference: <> Signed-off-by: Shawn Bohrer <> Signed-off-by: Arnaldo Carvalho de Melo <>
Diffstat (limited to 'tools')
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)
-'perf sched' {record|latency|replay|trace}
+'perf sched' {record|latency|map|replay|trace}
-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.
+ Input file name. (default:
+ Be more verbose. (show symbol address, etc)
Display verbose dump of the sched data.