diff options
Diffstat (limited to 'tools/perf/Documentation/perf-trace-perl.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-trace-perl.txt | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/tools/perf/Documentation/perf-trace-perl.txt b/tools/perf/Documentation/perf-trace-perl.txt index d729cee8d987..ee6525ee6d69 100644 --- a/tools/perf/Documentation/perf-trace-perl.txt +++ b/tools/perf/Documentation/perf-trace-perl.txt | |||
| @@ -49,12 +49,10 @@ available as calls back into the perf executable (see below). | |||
| 49 | As an example, the following perf record command can be used to record | 49 | As an example, the following perf record command can be used to record |
| 50 | all sched_wakeup events in the system: | 50 | all sched_wakeup events in the system: |
| 51 | 51 | ||
| 52 | # perf record -c 1 -f -a -M -R -e sched:sched_wakeup | 52 | # perf record -a -e sched:sched_wakeup |
| 53 | 53 | ||
| 54 | Traces meant to be processed using a script should be recorded with | 54 | Traces meant to be processed using a script should be recorded with |
| 55 | the above options: -c 1 says to sample every event, -a to enable | 55 | the above option: -a to enable system-wide collection. |
| 56 | system-wide collection, -M to multiplex the output, and -R to collect | ||
| 57 | raw samples. | ||
| 58 | 56 | ||
| 59 | The format file for the sched_wakep event defines the following fields | 57 | The format file for the sched_wakep event defines the following fields |
| 60 | (see /sys/kernel/debug/tracing/events/sched/sched_wakeup/format): | 58 | (see /sys/kernel/debug/tracing/events/sched/sched_wakeup/format): |