atomic counters _ golang

The primary mechanism for managing state in Go is communication over channels. We saw this for example with worker pools. There are a few other options for managing state though. Here we'll look at using the sync/atomic package for atomic counters accessed by multiple goroutines

package main

import (
    "fmt"
    "runtime"
    "sync/atomic"
    "time"
)

func main() {

    var ops uint64 = 0

    for i := 0; i < 50; i++ {
        go func() {
            for {
                atomic.AddUint64(&ops, 1)
                runtime.Gosched()
            }

        }()
    }

    time.Sleep(time.Second)

    opsFinal := atomic.LoadUint64(&ops)
    fmt.Println("ops:", opsFinal)
}

ops: 10476038

总结 : 

　　1 : ....