[PATCH 13/20] perf hists: Maintain total periods of group members in the leader

Namhyung Kim
2012-10-04T12:54:07Z

From: Namhyung Kim <namhyung.kim@lge.com>

Like group_stats in hist_entry, total periods information also need to
be known to the leader.

Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/util/hist.c | 25 +++++++++++++++++++++++++
tools/perf/util/hist.h | 1 +
2 files changed, 26 insertions(+)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 95415716c708..48488057c3da 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -194,6 +194,28 @@ static void hist_entry__add_group_stat(struct hist_entry *he_dest,
he_stat__add_stat(&he_dest->group_stats[evsel->group_idx], src);
}

+static void hists__add_group_stat(struct hists *hists)
+{
+ struct perf_evsel *evsel = hists_2_evsel(hists);
+ struct perf_evsel *leader = evsel->leader;
+ struct hists *leader_hists;
+
+ if (perf_evsel__is_group_leader(evsel))
+ return;
+
+ leader_hists = &leader->hists;
+
+ if (!leader_hists->group_stats) {
+ leader_hists->group_stats = calloc(leader->nr_members,
+ sizeof(struct events_stats));
+ if (!leader_hists->group_stats)
+ return;
+ }
+
+ memcpy(&leader_hists->group_stats[evsel->group_idx],
+ &hists->stats, sizeof(struct events_stats));
+}
+
static void hist_entry__decay(struct hist_entry *he)
{
he->stat.period = (he->stat.period * 7) / 8;
@@ -561,6 +583,9 @@ static void __hists__collapse_resort(struct hists *hists, bool threaded)
hists__apply_filters(hists, n);
}
}
+
+ if (symbol_conf.event_group)
+ hists__add_group_stat(hists);
}

void hists__collapse_resort(struct hists *hists)
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 66cb31fe81d2..e150cf86b94a 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -66,6 +66,7 @@ struct hists {
const char *symbol_filter_str;
pthread_mutex_t lock;
struct events_stats stats;
+ struct events_stats *group_stats;
u64 event_stream;
u16 col_len[HISTC_NR_COLS];
};
--
1.7.9.2