diff options
| -rw-r--r-- | tools/perf/builtin-stat.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 9805e03..7f56824 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -184,11 +184,18 @@ static int create_perf_stat_counter(struct perf_evsel *evsel) * like tracepoints. Clear it up for counting. */ attr->sample_period = 0; + /* * But set sample_type to PERF_SAMPLE_IDENTIFIER, which should be harmless * while avoiding that older tools show confusing messages. + * + * However for pipe sessions we need to keep it zero, + * because script's perf_evsel__check_attr is triggered + * by attr->sample_type != 0, and we can't run it on + * stat sessions. */ - attr->sample_type = PERF_SAMPLE_IDENTIFIER; + if (!(STAT_RECORD && perf_stat.file.is_pipe)) + attr->sample_type = PERF_SAMPLE_IDENTIFIER; /* * Disabling all counters initially, they will be enabled |