main.go

array_range_link.go

package main

import (
	"log"
	"time"
)

const (
	Success = "Success"
	Copy    = "Copy"
	Link    = "Link"
)

/*
Array golang speed test use link range
2021/05/10 00:24:30 Copy 9.591µs
2021/05/10 00:24:30 Link 8.768µs
2021/05/10 00:24:30 Copy 9.579µs
2021/05/10 00:24:30 Link 8.796µs
2021/05/10 00:24:30 Copy 9.579µs
2021/05/10 00:24:30 Link 8.79µs
2021/05/10 00:24:30 Copy 9.606µs
2021/05/10 00:24:30 Link 8.769µs
2021/05/10 00:24:30 Copy 9.579µs
2021/05/10 00:24:30 Link 8.794µs
2021/05/10 00:24:30 Copy 9.571µs
2021/05/10 00:24:30 Link 8.779µs
2021/05/10 00:24:30 Copy 9.604µs


*/
func main() {
	array := [40960]byte{}
	array[55] = 9
	for i := 0; i < 100; i++ {
		stime := time.Now()
		for b := range &array {
			if array[b] == 9 {
				//	log.Println(Success)
			}
		}
		log.Println(Link, time.Since(stime))
		stime = time.Now()
		for _, b := range array {
			if b == 9 {
				//	log.Println(Success)
			}
		}
		log.Println(Copy, time.Since(stime))
	}
}