})
}

func mmuSlow(util []trace.MutatorUtil, window time.Duration) (mmu float64) {
	if max := time.Duration(util[len(util)-1].Time - util[0].Time); window > max {
		window = max
	}

	mmu = 1.0

	// muInWindow returns the mean mutator utilization between
	// util[0].Time and end.