}
	return *resp, nil
}

// DevNull - Used by netperf to pump data to peer
func (client *peerRESTClient) DevNull(ctx context.Context, r io.Reader) error {
	respBody, err := client.callWithContext(ctx, peerRESTMethodDevNull, nil, r, -1)
	if err != nil {
		return err
	}
	defer xhttp.DrainBody(respBody)
	return err
}

// Netperf - To initiate netperf on peer

		}, idx, *client.host)
	}
	nerrs := ng.Wait()
	if freeze {
		freezeServices()
	} else {
		unfreezeServices()
	}
	return nerrs
}

// Netperf - perform mesh style network throughput test
func (sys *NotificationSys) Netperf(ctx context.Context, duration time.Duration) []madmin.NetperfNodeResult {
	length := len(sys.allPeerClients)
	if length == 0 {
		// For single node erasure setup.
		return nil

func (m *netperfReader) Read(b []byte) (int, error) {
	select {
	case <-m.eof:
		return 0, io.EOF
	default:
	}
	n := copy(b, m.buf)
	atomic.AddUint64(&m.n, uint64(n))
	return n, nil
}

func netperf(ctx context.Context, duration time.Duration) madmin.NetperfNodeResult {
	r := &netperfReader{eof: make(chan struct{})}
	r.buf = make([]byte, 128*humanize.KiByte)
	rand.Read(r.buf)

	connectionsPerPeer := 16

			} else {
				w.WriteHeader(http.StatusBadRequest)
			}
			break
		}
	}
}

// SiteReplicationNetPerf - everything goes to io.Discard
// [POST] /minio/admin/v3/site-replication/netperf
func (a adminAPIHandlers) SiteReplicationNetPerf(w http.ResponseWriter, r *http.Request) {
	durationStr := r.Form.Get(peerRESTDuration)
	duration, _ := time.ParseDuration(durationStr)
	if duration < globalNetPerfMinDuration {

		// We need sample size of minimum 10 secs.
		duration = globalNetPerfMinDuration
	}

	duration = duration.Round(time.Second)

	results, err := globalSiteReplicationSys.Netperf(ctx, duration)
	if err != nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(toAPIErrorCode(ctx, err)), r.URL)
		return
	}
	enc := json.NewEncoder(w)
	if err := enc.Encode(results); err != nil {

	adminAPIVersionPrefix          = SlashSeparator + adminAPIVersion
	adminAPISiteReplicationDevNull = "/site-replication/devnull"
	adminAPISiteReplicationNetPerf = "/site-replication/netperf"
	adminAPIClientDevNull          = "/speedtest/client/devnull"
	adminAPIClientDevExtraTime     = "/speedtest/client/devnull/extratime"
)

var gzipHandler = func() func(http.Handler) http.HandlerFunc {

		return
	}

	durationStr := r.Form.Get(peerRESTDuration)
	duration, err := time.ParseDuration(durationStr)
	if err != nil || duration.Seconds() == 0 {
		duration = time.Second * 10
	}
	result := netperf(r.Context(), duration.Round(time.Second))
	peersLogIf(r.Context(), gob.NewEncoder(w).Encode(result))
}

		if !reflect.DeepEqual(s[i], s[0]) {
			return errSRIAMConfigMismatch(peers[0].Name, peers[i].Name, s[0], s[i])
		}
	}

	return nil
}

// Netperf for site-replication net perf
func (c *SiteReplicationSys) Netperf(ctx context.Context, duration time.Duration) (results madmin.SiteNetPerfResult, err error) {
	infos, err := globalSiteReplicationSys.GetClusterInfo(ctx)
	if err != nil {
		return results, err

        Graph graph = new Graph();
        graph.addEdge("a1", "a2");
        assertThrows(Graph.CycleDetectedException.class, () -> graph.addEdge("a2", "a1"));
    }

    @Test
    public void testPerf() throws IOException {
        List<String[]> data = new ArrayList<>();
        String k = null;
        for (String line : Files.readAllLines(Paths.get("src/test/resources/dag.txt"))) {
            if (line.startsWith("\t")) {