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| author | Andi Kleen <ak@linux.intel.com> | 2015-02-25 00:13:40 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-25 16:42:23 +0100 |
| commit | 85c273d2b6569706762cf400079ca0699e007d81 (patch) | |
| tree | ff85ad53d0f7ea05d8bea1aa685d7df33ad1f6ac /tools/perf/Documentation | |
| parent | perf tools: Print the thread's tid on PERF_RECORD_COMM events when -D is asked (diff) | |
| download | linux-85c273d2b6569706762cf400079ca0699e007d81.tar.xz linux-85c273d2b6569706762cf400079ca0699e007d81.zip | |
perf record: Support recording running/enabled time
Add an option to perf record to record running/enabled time for read
events, similar to what stat does.
This is useful to understand multiplexing problems.
Right now the report support is not great, but at least report -D
already supports it.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1424819620-16043-1-git-send-email-andi@firstfloor.org
[ Fixed the Documentation entry to match the OPT_BOOLEAN one ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 1c7e50f62b1f..cae75c11120f 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -241,6 +241,9 @@ Capture machine state (registers) at interrupt, i.e., on counter overflows for each sample. List of captured registers depends on the architecture. This option is off by default. +--running-time:: +Record running and enabled time for read events (:S) + SEE ALSO -------- linkperf:perf-stat[1], linkperf:perf-list[1] |