[PATCH 09/20] perf hists: Add more helpers for hist entry stat

Namhyung Kim
2012-10-04T12:51:47Z

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

Add and use he_stat__add_{period,stat} for calculating hist entry's
stat. It will be used for accumulated stats later as well.

Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Arun Sharma <asharma@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/util/hist.c | 26 ++++++++++++++++++--------
1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 02476cb3167d..277947a669b2 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -151,6 +151,22 @@ static void hist_entry__add_cpumode_period(struct hist_entry *he,
}
}

+static void he_stat__add_period(struct he_stat *he_stat, u64 period)
+{
+ he_stat->period += period;
+ he_stat->nr_events += 1;
+}
+
+static void he_stat__add_stat(struct he_stat *dest, struct he_stat *src)
+{
+ dest->period += src->period;
+ dest->period_sys += src->period_sys;
+ dest->period_us += src->period_us;
+ dest->period_guest_sys += src->period_guest_sys;
+ dest->period_guest_us += src->period_guest_us;
+ dest->nr_events += src->nr_events;
+}
+
static void hist_entry__decay(struct hist_entry *he)
{
he->stat.period = (he->stat.period * 7) / 8;
@@ -270,8 +286,7 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
cmp = hist_entry__cmp(entry, he);

if (!cmp) {
- he->stat.period += period;
- ++he->stat.nr_events;
+ he_stat__add_period(&he->stat, period);

/* If the map of an existing hist_entry has
* become out-of-date due to an exec() or
@@ -418,12 +433,7 @@ static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
cmp = hist_entry__collapse(iter, he);

if (!cmp) {
- iter->stat.period += he->stat.period;
- iter->stat.period_sys += he->stat.period_sys;
- iter->stat.period_us += he->stat.period_us;
- iter->stat.period_guest_sys += he->stat.period_guest_sys;
- iter->stat.period_guest_us += he->stat.period_guest_us;
- iter->stat.nr_events += he->stat.nr_events;
+ he_stat__add_stat(&iter->stat, &he->stat);

if (symbol_conf.use_callchain) {
callchain_cursor_reset(&callchain_cursor);
--
1.7.9.2