mirror of
https://github.com/k3s-io/k3s.git
synced 2024-06-07 19:41:36 +00:00
53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package metrics
|
|
|
|
import (
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
const kubeProxySubsystem = "kubeproxy"
|
|
|
|
var (
|
|
// SyncProxyRulesLatency is the latency of one round of kube-proxy syncing proxy rules.
|
|
SyncProxyRulesLatency = prometheus.NewHistogram(
|
|
prometheus.HistogramOpts{
|
|
Subsystem: kubeProxySubsystem,
|
|
Name: "sync_proxy_rules_latency_microseconds",
|
|
Help: "SyncProxyRules latency",
|
|
Buckets: prometheus.ExponentialBuckets(1000, 2, 15),
|
|
},
|
|
)
|
|
)
|
|
|
|
var registerMetricsOnce sync.Once
|
|
|
|
// RegisterMetrics registers sync proxy rules latency metrics
|
|
func RegisterMetrics() {
|
|
registerMetricsOnce.Do(func() {
|
|
prometheus.MustRegister(SyncProxyRulesLatency)
|
|
})
|
|
}
|
|
|
|
// SinceInMicroseconds gets the time since the specified start in microseconds.
|
|
func SinceInMicroseconds(start time.Time) float64 {
|
|
return float64(time.Since(start).Nanoseconds() / time.Microsecond.Nanoseconds())
|
|
}
|