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perf tools: Do not zero sample_id_all for group members

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Andi reported following malfunction:

  # perf record -e '{ref-cycles,cycles}:S' -a sleep 1
  # perf script
  non matching sample_id_all

That's because we disable sample_id_all bit for non-sampling group
members. We can't do that, because it needs to be the same over the
whole event list. This patch keeps it untouched again.

Reported-by: Andi Kleen <andi@firstfloor.org>
Tested-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180923150420.27327-1-jolsa@kernel.org
Fixes: e9add8bac6 ("perf evsel: Disable write_backward for leader sampling group events")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2018-09-23 17:04:20 +02:00 committed by Arnaldo Carvalho de Melo
parent 6ac2226229
commit 8e88c29b35
2 changed files with 0 additions and 2 deletions
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1
tools/perf/tests/attr/test-record-group-sampling
View file

@ -37,4 +37,3 @@ sample_freq=0
sample_period=0
freq=0
write_backward=0
sample_id_all=0

1
tools/perf/util/evsel.c
View file

@ -956,7 +956,6 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
attr->sample_freq = 0;
attr->sample_period = 0;
attr->write_backward = 0;
attr->sample_id_all = 0;
}
if (opts->no_samples)