diff options
Diffstat (limited to 'simpleperf/event_attr.cpp')
| -rw-r--r-- | simpleperf/event_attr.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/simpleperf/event_attr.cpp b/simpleperf/event_attr.cpp index a1ee3d94..418bf443 100644 --- a/simpleperf/event_attr.cpp +++ b/simpleperf/event_attr.cpp @@ -66,9 +66,12 @@ EventAttr EventAttr::CreateDefaultAttrToMonitorEvent(const EventType& event_type attr.config = event_type.config; attr.mmap = 1; attr.comm = 1; + // Changing read_format affects the layout of the data read from perf_event_file, namely + // PerfCounter in event_fd.h. attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING | PERF_FORMAT_ID; attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | PERF_SAMPLE_PERIOD; + attr.disabled = 1; return EventAttr(attr); } |