if c.HealthCheckFn != nil && atomic.CompareAndSwapInt32(&c.connected, online, offline) {
		go func() {
			backOff := exponentialBackoffWait(
				rand.New(rand.NewSource(time.Now().UnixNano())),
				200*time.Millisecond,
				30*time.Second,
			)

			attempt := uint(0)
			for {
				if atomic.LoadInt32(&c.connected) == closed {
					return
				}

			wantSelected: &inputSerialized[9],
			wantOk:       true,
		},
	}

	for testID, tt := range tests {
		rng := rand.New(rand.NewSource(0))
		// Run for a number of times, shuffling the input to ensure that output is consistent.
		for i := 0; i < 10; i++ {
			t.Run(fmt.Sprintf("test-%d-%s-run-%d", testID, tt.name, i), func(t *testing.T) {
				if i > 0 {

			}
			// Encode all. This is used for benchmarking.
			enc, err := xl.AppendTo(nil)
			if err != nil {
				b.Fatal(err)
			}
			b.Logf("Serialized size: %d bytes", len(enc))
			rng := rand.New(rand.NewSource(0))
			dump := make([]byte, len(enc))
			b.Run("UpdateObjectVersion", func(b *testing.B) {
				b.SetBytes(int64(size))
				b.ResetTimer()
				b.ReportAllocs()
				for i := 0; i < b.N; i++ {
					// Load...

		t.Run(test.name, func(t *testing.T) {
			// Run multiple times, shuffling the input order.
			for i := int64(0); i < 50; i++ {
				t.Run(fmt.Sprint(i), func(t *testing.T) {
					rng := rand.New(rand.NewSource(i))
					rng.Shuffle(len(test.input), func(i, j int) {
						test.input[i], test.input[j] = test.input[j], test.input[i]
					})
					got := mergeXLV2Versions(test.quorum, true, 0, test.input...)

	if err != nil {
		t.Fatal(err)
	}
	if n != length {
		t.Errorf("erasureCreateFile returned %d, expected %d", n, length)
	}

	// To generate random offset/length.
	r := rand.New(rand.NewSource(UTCNow().UnixNano()))

	buf := &bytes.Buffer{}

	// Verify erasure.Decode() for random offsets and lengths.
	for i := 0; i < iterations; i++ {
		offset := r.Int63n(length)

		b.ResetTimer()
		b.ReportAllocs()
		for i := 0; i < b.N; i++ {
			concat(data...)
		}
	})
}

func BenchmarkConcatImplementation(b *testing.B) {
	data := make([]string, 2)
	rng := rand.New(rand.NewSource(0))
	for i := 0; i < 2; i++ {
		var tmp [16]byte
		rng.Read(tmp[:])
		data[i] = hex.EncodeToString(tmp[:])
	}
	b.ResetTimer()
	benchmark(b, data)
}

func BenchmarkPathJoinOld(b *testing.B) {

		readLocks:            make([]string, len(restClnts)),
		Names:                names,
		clnt:                 clnt,
		rng:                  rand.New(&lockedRandSource{src: rand.NewSource(time.Now().UTC().UnixNano())}),
		refreshInterval:      drwMutexRefreshInterval,
		lockRetryMinInterval: lockRetryMinInterval,
	}
}

// Lock holds a write lock on dm.
//

	go func() {
		// Update rebalance.bin periodically once every 5-10s, chosen randomly
		// to avoid multiple pool leaders herding to update around the same
		// time.
		r := rand.New(rand.NewSource(time.Now().UnixNano()))
		randSleepFor := func() time.Duration {
			return 5*time.Second + time.Duration(float64(5*time.Second)*r.Float64())
		}

		timer := time.NewTimer(randSleepFor())
		defer timer.Stop()

	sys.initStore(objAPI, etcdClient)
	sys.Unlock()

	retryCtx, cancel := context.WithCancel(ctx)

	// Indicate to our routine to exit cleanly upon return.
	defer cancel()

	r := rand.New(rand.NewSource(time.Now().UnixNano()))

	// Migrate storage format if needed.
	for {
		// Migrate IAM configuration, if necessary.
		if err := saveIAMFormat(retryCtx, sys.store); err != nil {
			if configRetriableErrors(err) {

		if skipIfSuccessBefore <= 0 {
			skipIfSuccessBefore = globalDriveConfig.GetMaxTimeout()
		}
	}

	t := time.NewTicker(checkEvery)
	defer t.Stop()
	fn := mustGetUUID()

	rng := rand.New(rand.NewSource(time.Now().UnixNano()))

	monitor := func() bool {
		if contextCanceled(ctx) {
			return false
		}

		if p.health.status.Load() != diskHealthOK {
			return true
		}