Go sort performance test

sort_test.go

package main

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

var n = 600000000
var seq = make([]int, n)

func TestRandomSeq(t *testing.T) {
	for i := 0; i < n; i++ {
		seq[i] = rand.Int()
	}
}

func TestSort(t *testing.T) {
	sort.Ints(seq)
}

/**
Sorting 600,000,000 random integers
On MacBook Pro (Retina, 15-inch, Mid 2015), 2.8 GHz Intel Core i7, 16 GB 1600 MHz DDR3

$ go test -v sort_test.go
=== RUN   TestRandomSeq
--- PASS: TestRandomSeq (13.52s)
=== RUN   TestSort
--- PASS: TestSort (164.81s)
PASS
ok  	command-line-arguments	178.820s
*/

Sorting 100,000,000 random integers

$ go test -v sort_test.go
=== RUN   TestRandomSeq
--- PASS: TestRandomSeq (2.21s)
=== RUN   TestSort
--- PASS: TestSort (24.57s)
PASS
ok      command-line-arguments  26.861s