package main import "testing" var global int64 const n = 1_000_000 func BenchmarkSumFoo(b *testing.B) { var local int64 for i := 0; i < b.N; i++ { b.StopTimer() s := make([]Foo, n) b.StartTimer() local = sumFoo(s) } global = local } func BenchmarkSumBar(b *testing.B) { var local int64 for i := 0; i < b.N; i++ { b.StopTimer() bar := Bar{ a: make([]int64, n), b: make([]int64, n), } b.StartTimer() local = sumBar(bar) } global = local }