for pb.Next() {
			n := 1000
			var wg sync.WaitGroup
			wg.Add(n)
			for range n {
				AfterFunc(0, wg.Done)
			}
			wg.Wait()
		}
	})
}

func BenchmarkStartStop1000(b *testing.B) {
	benchmark(b, func(pb *testing.PB) {
		for pb.Next() {
			const N = 1000
			timers := make([]*Timer, N)
			for i := range timers {
				timers[i] = AfterFunc(Hour, nil)
			}