Bool判定 VS ErrNil判定

main.go

package main

import (
	"errors"
	"fmt"
	"time"
)

func main() {
	boolWin := 0
	errWin := 0
	for j := 0; j < 10000; j++ {

		start1 := time.Now()
		for i := 0; i < 1000000; i++ {
			ok, err := test()
			if !ok {
				_ = err
				_ = ok
			}
		}
		time1 := time.Since(start1)

		start2 := time.Now()
		for i := 0; i < 1000000; i++ {
			ok, err := test()
			if err != nil {
				_ = err
				_ = ok
			}
		}
		time2 := time.Since(start2)

		if time1 == time2 {
			continue
		} else if time1 < time2 {
			boolWin++
		} else {
			errWin++
		}

	}
	fmt.Println(boolWin, errWin)
}

var (
	ErrorTest = errors.New("test")
)

func test() (ok bool, err error) {
	return false, ErrorTest
}