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metrics: fix flaw re empty timer mean

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Martin Holst Swende 2023-09-03 20:37:32 +02:00
parent abefcdc76d
commit 55c3396aac
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1 changed files with 5 additions and 4 deletions
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9
metrics/resetting_timer.go
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@ -80,11 +80,12 @@ type StandardResettingTimer struct {
func (t *StandardResettingTimer) Snapshot() ResettingTimerSnapshot { func (t *StandardResettingTimer) Snapshot() ResettingTimerSnapshot {
t.mutex.Lock() t.mutex.Lock()
defer t.mutex.Unlock() defer t.mutex.Unlock()
snapshot := &resettingTimerSnapshot{ snapshot := &resettingTimerSnapshot{}
values: t.values, if len(t.values) > 0 {
mean: float64(t.sum) / float64(len(t.values)), snapshot.mean = float64(t.sum) / float64(len(t.values))
snapshot.values = t.values
t.values = make([]int64, 0, InitialResettingTimerSliceCap)
} }
t.values = make([]int64, 0, InitialResettingTimerSliceCap)
t.sum = 0 t.sum = 0
return snapshot return snapshot
} }