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 94f2faebc7f0..cc37b3a4be76 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -191,11 +191,16 @@ OPTIONS -i:: --no-inherit:: Child tasks do not inherit counters. + -F:: --freq=:: Profile at this frequency. Use 'max' to use the currently maximum allowed frequency, i.e. the value in the kernel.perf_event_max_sample_rate - sysctl. + sysctl. Will throttle down to the currently maximum allowed frequency. + See --strict-freq. + +--strict-freq:: + Fail if the specified frequency can't be used. -m:: --mmap-pages=:: |