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Diffstat (limited to 'Documentation/trace')
| -rw-r--r-- | Documentation/trace/hwlat_detector.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/trace/hwlat_detector.rst b/Documentation/trace/hwlat_detector.rst index 4d952df0586a..de94b499b0bc 100644 --- a/Documentation/trace/hwlat_detector.rst +++ b/Documentation/trace/hwlat_detector.rst @@ -78,10 +78,11 @@ in /sys/kernel/tracing: - hwlat_detector/window - amount of time between (width) runs (usecs) - hwlat_detector/mode - the thread mode -By default, the hwlat detector's kernel thread will migrate across each CPU +By default, one hwlat detector's kernel thread will migrate across each CPU specified in cpumask at the beginning of a new window, in a round-robin fashion. This behavior can be changed by changing the thread mode, the available options are: - none: do not force migration - round-robin: migrate across each CPU specified in cpumask [default] + - per-cpu: create one thread for each cpu in tracing_cpumask |