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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-05-14 13:16:55 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-05-14 13:16:55 -0300 |
| commit | cee75ac7ecc27084accdb9d9d6fde65a09f047ae (patch) | |
| tree | 686208e18b1ab5356658980ee92c96486384412e /tools/perf/builtin-diff.c | |
| parent | c8446b9bdabcb0caa61bb341bd73c58f7104b503 (diff) | |
| download | op-kernel-dev-cee75ac7ecc27084accdb9d9d6fde65a09f047ae.zip op-kernel-dev-cee75ac7ecc27084accdb9d9d6fde65a09f047ae.tar.gz | |
perf hist: Clarify events_stats fields usage
The events_stats.total field is too generic, rename it to .total_period,
and also add a comment explaining that it is the sum of all the .period
fields in samples, that is needed because we use auto-freq to avoid
sampling artifacts.
Ditto for events_stats.lost, that is the sum of all lost_event.lost
fields, i.e. the number of events the kernel dropped.
Looking at the users, builtin-sched.c can make use of these fields and
stop doing it again.
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-diff.c')
| -rw-r--r-- | tools/perf/builtin-diff.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index 3a95a02..6dd4bda 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -54,7 +54,7 @@ static int diff__process_sample_event(event_t *event, struct perf_session *sessi return -1; } - session->hists.stats.total += data.period; + session->hists.stats.total_period += data.period; return 0; } |
