1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
package main

import "testing"

const N = 100000000

func BenchmarkAppend(b *testing.B) {
	b.StopTimer()
	x := make([]int, 0, N)

	b.StartTimer()
	for i := 0; i < N; i++ {
		x = append(x, i)
	}
}

func BenchmarkDirect(b *testing.B) {
	b.StopTimer()
	x := make([]int, N)

	b.StartTimer()
	for i := 0; i < N; i++ {
		x[i] = i
	}
}