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perf hists: Add more helpers for hist entry stat 

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

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arun Sharma <asharma@fb.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1349354994-17853-10-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2012-10-04 21:49:43 +09:00 committed by Arnaldo Carvalho de Melo
parent c4b35351ef
commit 139c081590
1 changed files with 18 additions and 8 deletions
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26
tools/perf/util/hist.c
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@ -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* become out-of-date due to an exec() or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);