perf hist: Make event__totals per hists

This is one more thing that started global but are more useful per hist
or per session.

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>

1 files changed, 21 insertions, 0 deletions

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 5dc4f8429eda..1614ad710046 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1028,3 +1028,24 @@ int hist_entry__annotate(struct hist_entry *self, struct list_head *head)
 	pclose(file);
 	return 0;
 }
+
+void hists__inc_nr_events(struct hists *self, u32 type)
+{
+	++self->hists.stats.nr_events[0];
+	++self->hists.stats.nr_events[type];
+}
+
+size_t hists__fprintf_nr_events(struct hists *self, FILE *fp)
+{
+	int i;
+	size_t ret = 0;
+
+	for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
+		if (!event__name[i])
+			continue;
+		ret += fprintf(fp, "%10s events: %10d\n",
+			       event__name[i], self->stats.nr_events[i]);
+	}
+
+	return ret;
+}