}
	fairAverages := uss.expectedAverages
	if fairAverages == nil {
		fairAverages = fairAlloc(demands, float64(uss.concurrencyLimit))
	}
	for i := range uss.clients {
		expectedAverage := fairAverages[i]
		var gotFair bool
		if expectedAverage > 0 {
			relDiff := (averages[i] - expectedAverage) / expectedAverage
			gotFair = math.Abs(relDiff) <= margin
		} else {