go func(me int) {
			he := 1 - me
			for i := int64(1); i < N; i++ {
				StoreInt64(&X[me], i)
				my := LoadInt64(&X[he])
				StoreInt64(&ack[me][i%3], my)
				for w := 1; LoadInt64(&ack[he][i%3]) == -1; w++ {
					if w%1000 == 0 {
						runtime.Gosched()
					}
				}
				his := LoadInt64(&ack[he][i%3])
				if (my != i && my != i-1) || (his != i && his != i-1) {

				}
				if ctx.Err() == nil {
					go churn(i + 1)
				}
			}
			go func() {
				churn(0)
			}()
			ready.Wait()

			fn(b)
			b.ReportMetric(float64(atomic.LoadInt64(&count))/float64(b.N), "concurrent_launches/op")
		}
	}

	benchWriteTo := func(b *testing.B) {
		goroutineProf := Lookup("goroutine")
		b.ResetTimer()
		for i := 0; i < b.N; i++ {

				}
			}
		case "PendingSize":
			z.PendingSize, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "PendingSize")
				return
			}
		case "FailedSize":
			z.FailedSize, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "FailedSize")
				return
			}
		case "PendingCount":
			z.PendingCount, err = dc.ReadInt64()
			if err != nil {

		case "ReplicatedSize":
			z.ReplicatedSize, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "ReplicatedSize")
				return
			}
		case "FailedSize":
			z.FailedSize, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "FailedSize")
				return
			}
		case "FailedCount":
			z.FailedCount, err = dc.ReadInt64()
			if err != nil {

				if err != nil {
					err = msgp.WrapError(err, "PartIndices", za0008)
					return
				}
			}
		case "Size":
			z.Size, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "Size")
				return
			}
		case "MTime":
			z.ModTime, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "ModTime")
				return
			}
		case "MetaSys":
			if dc.IsNil() {