Method exactSumFor

prometheus/go_collector_latest.go:402–412

exactSumFor takes a runtime/metrics metric name (that is assumed to be of kind KindFloat64Histogram) and returns its exact sum and whether its exact sum exists. The runtime/metrics API for histograms doesn't currently expose exact sums, but some of the other metrics are in fact exact sums of histog

(rmName string)

// The runtime/metrics API for histograms doesn't currently expose exact
// sums, but some of the other metrics are in fact exact sums of histograms.
func (c *goCollector) exactSumFor(rmName string) float64 {
	sumName, ok := c.rmExactSumMapForHist[rmName]
	if !ok {
		return 0
	}
	s, ok := c.sampleMap[sumName]
	if !ok {
		return 0
	}
	return unwrapScalarRMValue(s.Value)
}

func memStatsFromRM(ms *runtime.MemStats, rm map[string]*metrics.Sample) {
	lookupOrZero := func(name string) uint64 {