slice_and_heap_allocation.go

package main


import (
	"math/rand"
	"testing"
	"time"
)

// slice_and_heap_allocation_test.go

// 460 ns/op
func BenchmarkSliceAndHeap(b *testing.B) {
	b.ResetTimer()
	rand.Seed(time.Now().UnixNano())
	for i := 0; i < b.N; i++ {
		sl := make([]int, rand.Intn(500 - 1) + 1)
		_ = sl
	}
}

//  0.300 ns/op
func BenchmarkSliceAndHeap2(b *testing.B) {
	b.ResetTimer()
	rand.Seed(time.Now().UnixNano())
	for i := 0; i < b.N; i++ {
		sl := make([]int, 1000)
		_ = sl
	}
}