47 lines
733 B
Go
47 lines
733 B
Go
package main
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import (
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"fmt"
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"os"
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"runtime"
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"runtime/trace"
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"time"
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debug "runtime/debug"
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)
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func child(c chan string) {
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for msg := range c {
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c <- msg
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}
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}
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func main() {
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f, err := os.Create("trace.out")
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if err != nil {
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panic(err)
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}
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defer f.Close()
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if err := trace.Start(f); err != nil {
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panic(err)
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}
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defer trace.Stop()
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runtime.GOMAXPROCS(1)
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debug.SetGCPercent(-1)
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c := make(chan string)
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go child(c)
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const niters = 2000000
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for i := 0; i < niters; i++ {
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c <- "test"
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reply := <-c
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if len(reply) != 4 {
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panic("err")
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}
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}
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fmt.Println("done")
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time.Sleep(1 * time.Second)
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}
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