diff options
Diffstat (limited to 'tools/perf/Documentation/perf-record.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 15fd108afbe6..11addbef9a49 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -66,6 +66,9 @@ OPTIONS like this: name=\'CPU_CLK_UNHALTED.THREAD:cmask=0x1\'. - 'aux-output': Generate AUX records instead of events. This requires that an AUX area event is also provided. + - 'aux-sample-size': Set sample size for AUX area sampling. If the + '--aux-sample' option has been used, set aux-sample-size=0 to disable + AUX area sampling for the event. See the linkperf:perf-list[1] man page for more parameters. @@ -444,7 +447,9 @@ This option sets the time out limit. The default value is 500 ms. --switch-events:: Record context switch events i.e. events of type PERF_RECORD_SWITCH or -PERF_RECORD_SWITCH_CPU_WIDE. +PERF_RECORD_SWITCH_CPU_WIDE. In some cases (e.g. Intel PT or CoreSight) +switch events will be enabled automatically, which can be suppressed by +by the option --no-switch-events. --clang-path=PATH:: Path to clang binary to use for compiling BPF scriptlets. |