mirror of
https://github.com/ceph/ceph-csi.git
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53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
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/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"sync"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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)
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const kubeProxySubsystem = "kubeproxy"
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var (
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// SyncProxyRulesLatency is the latency of one round of kube-proxy syncing proxy rules.
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SyncProxyRulesLatency = prometheus.NewHistogram(
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prometheus.HistogramOpts{
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Subsystem: kubeProxySubsystem,
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Name: "sync_proxy_rules_latency_microseconds",
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Help: "SyncProxyRules latency",
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Buckets: prometheus.ExponentialBuckets(1000, 2, 15),
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},
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)
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)
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var registerMetricsOnce sync.Once
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// RegisterMetrics registers sync proxy rules latency metrics
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func RegisterMetrics() {
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registerMetricsOnce.Do(func() {
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prometheus.MustRegister(SyncProxyRulesLatency)
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})
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}
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// SinceInMicroseconds gets the time since the specified start in microseconds.
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func SinceInMicroseconds(start time.Time) float64 {
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return float64(time.Since(start).Nanoseconds() / time.Microsecond.Nanoseconds())
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}
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