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metrics: minor improvements to runtimehistogram loop

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Martin Holst Swende 2023-09-11 20:35:25 +02:00
parent 8038c0fb01
commit 878680ee23
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1 changed files with 14 additions and 18 deletions
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32
metrics/runtimehistogram.go
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@ -86,34 +86,30 @@ func newRuntimeHistogramSnapshot(h *metrics.Float64Histogram) *runtimeHistogramS
func (h *runtimeHistogramSnapshot) calc() {
h.calculated = true
var (
count int64 // number of samples
sum float64 // approx sum of all sample values
minSet = false
min int64
max float64
count int64 // number of samples
sum float64 // approx sum of all sample values
min int64
max float64
)
if len(h.internal.Counts) == 0 {
return
}
for i, c := range h.internal.Counts {
count += int64(c)
midpoint := h.midpoint(i)
sum += midpoint * float64(c)
if c == 0 {
continue
}
if !minSet {
minSet = true
if count == 0 { // Set min only first loop iteration
min = int64(math.Floor(h.internal.Buckets[i]))
}
if count > 0 {
edge := h.internal.Buckets[i+1]
if math.IsInf(edge, 1) {
edge = h.internal.Buckets[i]
}
if edge > max {
max = edge
}
count += int64(c)
sum += h.midpoint(i) * float64(c)
// Set max on every iteration
edge := h.internal.Buckets[i+1]
if math.IsInf(edge, 1) {
edge = h.internal.Buckets[i]
}
if edge > max {
max = edge
}
}
h.min = min