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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-05-14 14:19:35 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-05-14 14:19:35 -0300
commitc82ee828aa20487d254a5225d256cd422acee459 (patch)
tree6f8132442237bc4f2393e04a5f30b3711a8f91ca /tools/perf/builtin-diff.c
parentcee75ac7ecc27084accdb9d9d6fde65a09f047ae (diff)
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perf report: Report number of events, not samples
Number of samples is meaningless after we switched to auto-freq, so report the number of events, i.e. not the sum of the different periods, but the number PERF_RECORD_SAMPLE emitted by the kernel. While doing this I noticed that naming "count" to the sum of all the event periods can be confusing, so rename it to .period, just like in struct sample.data, so that we become more consistent. This helps with the next step, that was to record in struct hist_entry the number of sample events for each instance, we need that because we use it to generate the number of events when applying filters to the tree of hist entries like it is being done in the TUI report browser. Suggested-by: Ingo Molnar <mingo@elte.hu> 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.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 6dd4bdae8a8..a6e2fdc7a04 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -23,9 +23,9 @@ static bool force;
static bool show_displacement;
static int hists__add_entry(struct hists *self,
- struct addr_location *al, u64 count)
+ struct addr_location *al, u64 period)
{
- if (__hists__add_entry(self, al, NULL, count) != NULL)
+ if (__hists__add_entry(self, al, NULL, period) != NULL)
return 0;
return -ENOMEM;
}
@@ -50,7 +50,7 @@ static int diff__process_sample_event(event_t *event, struct perf_session *sessi
event__parse_sample(event, session->sample_type, &data);
if (hists__add_entry(&session->hists, &al, data.period)) {
- pr_warning("problem incrementing symbol count, skipping event\n");
+ pr_warning("problem incrementing symbol period, skipping event\n");
return -1;
}