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| author | Adrian Hunter <adrian.hunter@intel.com> | 2015-09-25 16:15:44 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-09-28 16:58:27 -0300 |
| commit | 385e33063fb963f5cccb0a37fe539319b6481fa5 (patch) | |
| tree | 3c475ac468c7504056b2c24e60eb77218ce39f88 | |
| parent | 051a01b9a2c1c1ef3049973a43d9ed4ddcc946f3 (diff) | |
| download | talos-obmc-linux-385e33063fb963f5cccb0a37fe539319b6481fa5.tar.gz talos-obmc-linux-385e33063fb963f5cccb0a37fe539319b6481fa5.zip | |
perf intel-pt: Move branch filter logic
intel_pt_synth_branch_sample() skips synthesizing if the branch does not
match the branch filter. That logic was sitting in the middle of the
function but is more efficiently placed at the start of the function, so
move it.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-14-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/intel-pt.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index c8bb5ca6a157..2c01e723826a 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -891,6 +891,9 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq) union perf_event *event = ptq->event_buf; struct perf_sample sample = { .ip = 0, }; + if (pt->branches_filter && !(pt->branches_filter & ptq->flags)) + return 0; + event->sample.header.type = PERF_RECORD_SAMPLE; event->sample.header.misc = PERF_RECORD_MISC_USER; event->sample.header.size = sizeof(struct perf_event_header); @@ -909,9 +912,6 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq) sample.flags = ptq->flags; sample.insn_len = ptq->insn_len; - if (pt->branches_filter && !(pt->branches_filter & ptq->flags)) - return 0; - if (pt->synth_opts.inject) { ret = intel_pt_inject_event(event, &sample, pt->branches_sample_type, |
