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Improve performances when Prometheus metrics are enabled

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Julien Salleyron 2022-07-07 18:00:09 +02:00 • committed by GitHub
parent 8f6463ba7a
commit 0231db05b4
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5 changed files with 270 additions and 251 deletions
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8
pkg/middlewares/metrics/metrics.go
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@ -103,8 +103,9 @@ func (m *metricsMiddleware) ServeHTTP(rw http.ResponseWriter, req *http.Request)
labels = append(labels, m.baseLabels...)
labels = append(labels, "method", getMethod(req), "protocol", getRequestProtocol(req))
m.openConnsGauge.With(labels...).Add(1)
defer m.openConnsGauge.With(labels...).Add(-1)
openConnsGauge := m.openConnsGauge.With(labels...)
openConnsGauge.Add(1)
defer openConnsGauge.Add(-1)
// TLS metrics
if req.TLS != nil {
@ -122,8 +123,7 @@ func (m *metricsMiddleware) ServeHTTP(rw http.ResponseWriter, req *http.Request)
labels = append(labels, "code", strconv.Itoa(recorder.getCode()))
histograms := m.reqDurationHistogram.With(labels...)
histograms.ObserveFromStart(start)
m.reqDurationHistogram.With(labels...).ObserveFromStart(start)
m.reqsCounter.With(labels...).Add(1)
}