diff options
Diffstat (limited to 'tools/perf/Documentation/perf.data-file-format.txt')
| -rw-r--r-- | tools/perf/Documentation/perf.data-file-format.txt | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf.data-file-format.txt b/tools/perf/Documentation/perf.data-file-format.txt index de8b39dda7b8..e90c59c6d815 100644 --- a/tools/perf/Documentation/perf.data-file-format.txt +++ b/tools/perf/Documentation/perf.data-file-format.txt @@ -398,6 +398,11 @@ struct auxtrace_error_event { char msg[MAX_AUXTRACE_ERROR_MSG]; }; + PERF_RECORD_HEADER_FEATURE = 80, + +Describes a header feature. These are records used in pipe-mode that +contain information that otherwise would be in perf.data file's header. + Event types Define the event attributes with their IDs. @@ -422,8 +427,9 @@ struct perf_pipe_file_header { }; The information about attrs, data, and event_types is instead in the -synthesized events PERF_RECORD_ATTR, PERF_RECORD_HEADER_TRACING_DATA and -PERF_RECORD_HEADER_EVENT_TYPE that are generated by perf record in pipe-mode. +synthesized events PERF_RECORD_ATTR, PERF_RECORD_HEADER_TRACING_DATA, +PERF_RECORD_HEADER_EVENT_TYPE, and PERF_RECORD_HEADER_FEATURE +that are generated by perf record in pipe-mode. References: |