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authorKan Liang <kan.liang@intel.com>2015-08-04 11:30:19 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-08-05 18:50:52 +0300
commit320677123905fd1dd122895cd5fb870ee9e1380b (patch)
tree82b523328ec900684341656326ec6bf0a1e5e382 /tools/perf/util/parse-events.h
parent34221118cb13f8b37480bce7286a1b44e90773d8 (diff)
downloadlinux-320677123905fd1dd122895cd5fb870ee9e1380b.tar.xz
perf tools: Per-event time support
This patchkit adds the ability to turn off time stamps per event. One usaful case for partial time is to work with per-event callgraph to enable "PEBS threshold > 1" (https://lkml.org/lkml/2015/5/10/196), which can significantly reduce the sampling overhead. The event samples with time stamps off will not be ordered. Signed-off-by: Kan Liang <kan.liang@intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1438677022-34296-2-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/parse-events.h')
-rw-r--r--tools/perf/util/parse-events.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 2063048a4354..e6f9aacc1cce 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -63,6 +63,7 @@ enum {
PARSE_EVENTS__TERM_TYPE_NAME,
PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
+ PARSE_EVENTS__TERM_TYPE_TIME,
};
struct parse_events_term {