From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>
If the timestamp and the value are both zero, the stats will not be
updated. We may in the future add a way to allow it to add zero of both,
but in most case, a delta of zero is pretty meaningless.
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
src/histograms.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/histograms.c b/src/histograms.c
index 480b78da606b..4e03c967dca3 100644
--- a/src/histograms.c
+++ b/src/histograms.c
@@ -538,6 +538,10 @@ __hidden void _teval_update_stat(struct traceeval_type *type,
unsigned long long val,
unsigned long long ts)
{
+ /* If both the delta and the timestamp are zero, ignore this */
+ if (!val && !ts)
+ return;
+
if (!stat->count++) {
stat->max = val;
stat->min = val;
--
2.42.0
|