}
		})
	})
	b.Run("impl=func", func(b *testing.B) {
		benchmark(b, func(pb *testing.PB) {
			for pb.Next() {
				newTimerFunc(1 * Second).Stop()
			}
		})
	})
}

func BenchmarkSimultaneousAfterFunc1000(b *testing.B) {
	benchmark(b, func(pb *testing.PB) {
		for pb.Next() {
			n := 1000
			var wg sync.WaitGroup
			wg.Add(n)
			for range n {
				AfterFunc(0, wg.Done)
			}
			wg.Wait()