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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package runtime_test
import (
"runtime"
"sync"
"sync/atomic"
"testing"
)
func fin(v *int) {
}
func BenchmarkFinalizer(b *testing.B) {
const CallsPerSched = 1000
procs := runtime.GOMAXPROCS(-1)
N := int32(b.N / CallsPerSched)
var wg sync.WaitGroup
wg.Add(procs)
for p := 0; p < procs; p++ {
go func() {
var data [CallsPerSched]*int
for i := 0; i < CallsPerSched; i++ {
data[i] = new(int)
}
for atomic.AddInt32(&N, -1) >= 0 {
runtime.Gosched()
for i := 0; i < CallsPerSched; i++ {
runtime.SetFinalizer(data[i], fin)
}
for i := 0; i < CallsPerSched; i++ {
runtime.SetFinalizer(data[i], nil)
}
}
wg.Done()
}()
}
wg.Wait()
}
func BenchmarkFinalizerRun(b *testing.B) {
const CallsPerSched = 1000
procs := runtime.GOMAXPROCS(-1)
N := int32(b.N / CallsPerSched)
var wg sync.WaitGroup
wg.Add(procs)
for p := 0; p < procs; p++ {
go func() {
for atomic.AddInt32(&N, -1) >= 0 {
runtime.Gosched()
for i := 0; i < CallsPerSched; i++ {
v := new(int)
runtime.SetFinalizer(v, fin)
}
runtime.GC()
}
wg.Done()
}()
}
wg.Wait()
}
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