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Diffstat (limited to 'tools/perf/Documentation/perf-ftrace.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-ftrace.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt index eaec8253be68..b77f58c4d2fd 100644 --- a/tools/perf/Documentation/perf-ftrace.txt +++ b/tools/perf/Documentation/perf-ftrace.txt @@ -148,6 +148,17 @@ OPTIONS for 'perf ftrace latency' --use-nsec:: Use nano-second instead of micro-second as a base unit of the histogram. +--bucket-range=:: + Bucket range in ms or ns (according to -n/--use-nsec), default is log2() mode. + +--min-latency=:: + Minimum latency for the start of the first bucket, in ms or ns (according to + -n/--use-nsec). + +--max-latency=:: + Maximum latency for the start of the last bucket, in ms or ns (according to + -n/--use-nsec). The setting is ignored if the value results in more than + 22 buckets. OPTIONS for 'perf ftrace profile' --------------------------------- @@ -190,6 +201,14 @@ OPTIONS for 'perf ftrace profile' Sort the result by the given field. Available values are: total, avg, max, count, name. Default is 'total'. +--graph-opts:: + List of options allowed to set: + + - nosleep-time - Measure on-CPU time only for function_graph tracer. + - noirqs - Ignore functions that happen inside interrupt. + - thresh=<n> - Setup trace duration threshold in microseconds. + - depth=<n> - Set max depth for function graph tracer to follow. + SEE ALSO -------- |