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|
package main
import (
"math/rand"
"runtime"
"time"
)
func main() {
ms := runtime.MemStats{}
for {
escapesToHeap()
runtime.ReadMemStats(&ms)
println("Heap before GC. Used: ", ms.HeapInuse, " Free: ", ms.HeapIdle, " Meta: ", ms.GCSys)
runtime.GC()
runtime.ReadMemStats(&ms)
println("Heap after GC. Used: ", ms.HeapInuse, " Free: ", ms.HeapIdle, " Meta: ", ms.GCSys)
time.Sleep(5 * time.Second)
}
}
func escapesToHeap() {
n := rand.Intn(100)
println("Doing ", n, " iterations")
for i := 0; i < n; i++ {
s := make([]byte, i)
_ = append(s, 42)
}
}
|
