kubernetes processor_listener_test 源码
kubernetes processor_listener_test 代码
文件路径：/staging/src/k8s.io/client-go/tools/cache/processor_listener_test.go
/*
Copyright 2016 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 cache
import (
"sync"
"testing"
"time"
"k8s.io/apimachinery/pkg/util/wait"
)
const (
concurrencyLevel = 5
)
func BenchmarkListener(b *testing.B) {
var notification addNotification
var swg sync.WaitGroup
swg.Add(b.N)
b.SetParallelism(concurrencyLevel)
// Preallocate enough space so that benchmark does not run out of it
pl := newProcessListener(&ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
swg.Done()
},
}, 0, 0, time.Now(), 1024*1024)
var wg wait.Group
defer wg.Wait() // Wait for .run and .pop to stop
defer close(pl.addCh) // Tell .run and .pop to stop
wg.Start(pl.run)
wg.Start(pl.pop)
b.ReportAllocs()
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
pl.add(notification)
}
})
swg.Wait() // Block until all notifications have been received
b.StopTimer()
}
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