diff options
Diffstat (limited to 'tools/perf/util/session.c')
| -rw-r--r-- | tools/perf/util/session.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 24259bc2c598..7b740a73e595 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -140,8 +140,14 @@ struct perf_session *perf_session__new(struct perf_data_file *file, if (perf_session__open(session) < 0) goto out_close; - perf_session__set_id_hdr_size(session); - perf_session__set_comm_exec(session); + /* + * set session attributes that are present in perf.data + * but not in pipe-mode. + */ + if (!file->is_pipe) { + perf_session__set_id_hdr_size(session); + perf_session__set_comm_exec(session); + } } } else { session->machines.host.env = &perf_env; @@ -156,7 +162,11 @@ struct perf_session *perf_session__new(struct perf_data_file *file, pr_warning("Cannot read kernel map\n"); } - if (tool && tool->ordering_requires_timestamps && + /* + * In pipe-mode, evlist is empty until PERF_RECORD_HEADER_ATTR is + * processed, so perf_evlist__sample_id_all is not meaningful here. + */ + if ((!file || !file->is_pipe) && tool && tool->ordering_requires_timestamps && tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); tool->ordered_events = false; @@ -1656,6 +1666,7 @@ static int __perf_session__process_pipe_events(struct perf_session *session) buf = malloc(cur_size); if (!buf) return -errno; + ordered_events__set_copy_on_queue(oe, true); more: event = buf; err = readn(fd, event, sizeof(struct perf_event_header)); |