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author | Ingo Molnar <mingo@elte.hu> | 2010-12-02 05:20:11 -0500 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-12-02 05:20:11 -0500 |
commit | e4b546a3643fbfc510d5ef7db538e4d3ab00effb (patch) | |
tree | 315d13bdb2dfb1149e44c85043c9d02dc7db219d /tools/perf/Documentation/perf-sched.txt | |
parent | b3d006c0e745bfd2dab4984ffe3279d5cf4e926a (diff) | |
parent | d7470b6afca85ed4388fff57fc9d89f5a3be02ff (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.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) | |||
8 | SYNOPSIS | 8 | SYNOPSIS |
9 | -------- | 9 | -------- |
10 | [verse] | 10 | [verse] |
11 | 'perf sched' {record|latency|replay|trace} | 11 | 'perf sched' {record|latency|map|replay|trace} |
12 | 12 | ||
13 | DESCRIPTION | 13 | DESCRIPTION |
14 | ----------- | 14 | ----------- |
15 | There are four variants of perf sched: | 15 | There 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 | |||
33 | OPTIONS | 39 | OPTIONS |
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. |