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| author |  Adrian Hunter <adrian.hunter@intel.com>
| 2019-11-15 14:42:17 +0200 |
|---|---|---|
| committer |  Arnaldo Carvalho de Melo <acme@redhat.com>
| 2019-11-22 10:48:13 -0300 |
| commit | eb7a52d46c6ac95df563f867d526b3d46616b10b (patch) | |
| tree | a5125438d96512fdd938e1618327b929dd566cef /tools/perf/Documentation/perf-record.txt | |
| parent | perf record: Add support for AUX area sampling (diff) | |
| download | linux-eb7a52d46c6ac95df563f867d526b3d46616b10b.tar.gz linux-eb7a52d46c6ac95df563f867d526b3d46616b10b.tar.bz2 linux-eb7a52d46c6ac95df563f867d526b3d46616b10b.zip | |
perf record: Add aux-sample-size config term
To allow individual events to be selected for AUX area sampling, add
aux-sample-size config term. attr.aux_sample_size is updated by
auxtrace_parse_sample_options() so that the existing validation will see
the value. Any event that has a non-zero aux_sample_size will cause AUX
area sampling to be configured, irrespective of the --aux-sample option.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20191115124225.5247-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-record.txt')
| -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 e216d7b529c9..b23a4012a606 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -62,6 +62,9 @@ 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. |