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| author | Adrian Hunter <adrian.hunter@intel.com> | 2015-04-30 17:37:29 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-05-06 00:12:57 +0300 |
| commit | 4a96f7a02eb52b1b618ab610e689bd82770f00b0 (patch) | |
| tree | 13ff6ebf629e6b024daf0c8ea1da3e7b65b636cd /tools/perf/util/machine.h | |
| parent | 53c76b0e9ed5ed1f00371160f0be60402acba165 (diff) | |
| download | linux-4a96f7a02eb52b1b618ab610e689bd82770f00b0.tar.xz | |
perf tools: Add support for PERF_RECORD_AUX
Add support for the PERF_RECORD_AUX event type.
PERF_RECORD_AUX is a new kernel event that records when new data lands
in the AUX buffer. Currently it is assumed that AUX data follows the
same ring buffer conventions used by the perf events buffer, and
consequently the AUX event is not processed during recording.
It is processed during session processing so that the information in the
'flags' member is made available.
The format of PERF_RECORD_AUX is outlined in the linux/perf_events.h
header file. The 'flags' are also enumerated.
Intel PT and Intel BTS use the flag named PERF_AUX_FLAG_TRUNCATED to
determine if data has been lost because the buffer became full as perf
was not able to empty it fast enough.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1430404667-10593-7-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/machine.h')
| -rw-r--r-- | tools/perf/util/machine.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 6d64cedb9d1e..fc5432aa66b5 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -81,6 +81,8 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event struct perf_sample *sample); int machine__process_lost_event(struct machine *machine, union perf_event *event, struct perf_sample *sample); +int machine__process_aux_event(struct machine *machine, + union perf_event *event); int machine__process_mmap_event(struct machine *machine, union perf_event *event, struct perf_sample *sample); int machine__process_mmap2_event(struct machine *machine, union perf_event *event, |