go-cpu -d 3us

main.go

package main

import (
	"flag"
	"fmt"
	"time"
)

func main() {
	var duration time.Duration
	flag.DurationVar(&duration, "d", time.Millisecond, "")
	flag.Parse()
	fmt.Println("sleep", duration)
	i := 0
	for {
		time.Sleep(duration)
		i++
		i = i % 10
	}
}