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-rw-r--r--tools/perf/util/hist.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 50c8fece1681..a7193c5a0422 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -100,13 +100,15 @@ static void hist_entry__decay(struct hist_entry *he)
static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
{
+ if (he->period == 0)
+ return true;
hists->stats.total_period -= he->period;
hist_entry__decay(he);
hists->stats.total_period += he->period;
return he->period == 0;
}
-void hists__decay_entries(struct hists *hists)
+static void __hists__decay_entries(struct hists *hists, bool threaded)
{
struct rb_node *next = rb_first(&hists->entries);
struct hist_entry *n;
@@ -114,11 +116,15 @@ void hists__decay_entries(struct hists *hists)
while (next) {
n = rb_entry(next, struct hist_entry, rb_node);
next = rb_next(&n->rb_node);
-
- if (hists__decay_entry(hists, n)) {
+ /*
+ * We may be annotating this, for instance, so keep it here in
+ * case some it gets new samples, we'll eventually free it when
+ * the user stops browsing and it agains gets fully decayed.
+ */
+ if (hists__decay_entry(hists, n) && !n->used) {
rb_erase(&n->rb_node, &hists->entries);
- if (sort__need_collapse)
+ if (sort__need_collapse || threaded)
rb_erase(&n->rb_node_in, &hists->entries_collapsed);
hist_entry__free(n);
@@ -127,6 +133,16 @@ void hists__decay_entries(struct hists *hists)
}
}
+void hists__decay_entries(struct hists *hists)
+{
+ return __hists__decay_entries(hists, false);
+}
+
+void hists__decay_entries_threaded(struct hists *hists)
+{
+ return __hists__decay_entries(hists, true);
+}
+
/*
* histogram, sorted on item, collects periods
*/