aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/Documentation/perf-sched.txt
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2010-12-02 05:20:11 -0500
committerIngo Molnar <mingo@elte.hu>2010-12-02 05:20:11 -0500
commite4b546a3643fbfc510d5ef7db538e4d3ab00effb (patch)
tree315d13bdb2dfb1149e44c85043c9d02dc7db219d /tools/perf/Documentation/perf-sched.txt
parentb3d006c0e745bfd2dab4984ffe3279d5cf4e926a (diff)
parentd7470b6afca85ed4388fff57fc9d89f5a3be02ff (diff)
Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 into perf/core
Diffstat (limited to 'tools/perf/Documentation/perf-sched.txt')
-rw-r--r--tools/perf/Documentation/perf-sched.txt18
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)
8SYNOPSIS 8SYNOPSIS
9-------- 9--------
10[verse] 10[verse]
11'perf sched' {record|latency|replay|trace} 11'perf sched' {record|latency|map|replay|trace}
12 12
13DESCRIPTION 13DESCRIPTION
14----------- 14-----------
15There are four variants of perf sched: 15There are five variants of perf sched:
16 16
17 'perf sched record <command>' to record the scheduling events 17 'perf sched record <command>' to record the scheduling events
18 of an arbitrary workload. 18 of an arbitrary workload.
@@ -30,8 +30,22 @@ There are four variants of perf sched:
30 of the workload as it occurred when it was recorded - and can repeat 30 of the workload as it occurred when it was recorded - and can repeat
31 it a number of times, measuring its performance.) 31 it a number of times, measuring its performance.)
32 32
33 'perf sched map' to print a textual context-switching outline of
34 workload captured via perf sched record. Columns stand for
35 individual CPUs, and the two-letter shortcuts stand for tasks that
36 are running on a CPU. A '*' denotes the CPU that had the event, and
37 a dot signals an idle CPU.
38
33OPTIONS 39OPTIONS
34------- 40-------
41-i::
42--input=<file>::
43 Input file name. (default: perf.data)
44
45-v::
46--verbose::
47 Be more verbose. (show symbol address, etc)
48
35-D:: 49-D::
36--dump-raw-trace=:: 50--dump-raw-trace=::
37 Display verbose dump of the sched data. 51 Display verbose dump of the sched data.