resp, err := conn.Request(ctx, handlerTest, payload)
						latency += time.Since(t).Nanoseconds()
						if err != nil {
							if debugReqs {
								fmt.Println(err.Error())
							}
							b.Fatal(err.Error())
						}
						PutByteBuffer(resp)
						n++
					}
					atomic.AddInt64(&ops, int64(n))
					atomic.AddInt64(&lat, latency)
				})
				spent := time.Since(t)
				if spent > 0 && n > 0 {

	"github.com/minio/madmin-go/v3"
)

//go:generate msgp -file $GOFILE

// ReplicationLatency holds information of bucket operations latency, such us uploads
type ReplicationLatency struct {
	// Single & Multipart PUTs latency
	UploadHistogram LastMinuteHistogram
}

// Merge two replication latency into a new one
func (rl ReplicationLatency) merge(other ReplicationLatency) (newReplLatency ReplicationLatency) {

					if hs, ok := h[t.URL().Host]; ok {
						t.TotalDowntime = hs.offlineDuration
						t.Online = hs.Online
						t.LastOnline = hs.lastOnline
						t.Latency = madmin.LatencyStat{
							Curr: hs.latency.curr,
							Avg:  hs.latency.avg,
							Max:  hs.latency.peak,
						}
					}
					targets = append(targets, t.Clone())
				}
			}
		}
		return targets
	}
	sys.RLock()
	defer sys.RUnlock()

				return
			}
		case "Online":
			z.Online, err = dc.ReadBool()
			if err != nil {
				err = msgp.WrapError(err, "Online")
				return
			}
		case "Latency":
			err = z.Latency.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Latency")
				return
			}
		case "ReplicatedSize":
			z.ReplicatedSize, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "ReplicatedSize")

				Failed:          fstats.toMetric(),
				FailStats:       fstats,
				ReplicatedSize:  stat.ReplicatedSize + oldst.ReplicatedSize,
				ReplicatedCount: stat.ReplicatedCount + oldst.ReplicatedCount,
				Latency:         stat.Latency.merge(oldst.Latency),
				XferRateLrg:     &lrg,
				XferRateSml:     &sml,
			}
			totReplicatedSize += stat.ReplicatedSize
			totReplicatedCount += stat.ReplicatedCount

| `minio_cluster_replication_average_link_latency_ms`        | Average replication link latency in milliseconds                                                         |
| `minio_cluster_replication_max_link_latency_ms`            | Maximum replication link latency in milliseconds seen since server start                                 |

            "uid": "${DS_PROMETHEUS}"
          },
          "exemplar": true,
          "expr": "minio_node_drive_latency_us{job=~\"$scrape_jobs\",server=\"$server\"}",
          "interval": "",
          "legendFormat": "[{{drive}}:{{api}}]",
          "refId": "B"
        }
      ],
      "title": "Drive Latency (micro sec)",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",

...

| `minio_system_drive_waiting_io`                | `gauge`   | Total waiting I/O operations on a drive                            | `drive,set_index,drive_index,pool_index,server`     |
| `minio_system_drive_api_latency_micros`        | `gauge`   | Average last minute latency in µs for drive API storage operations | `drive,api,set_index,drive_index,pool_index,server` |

              "id": "byName",
              "options": "Value #B"
            },
            "properties": [
              {
                "id": "displayName",
                "value": "P50 Latency"
              },
              {
                "id": "unit",
                "value": "s"
              },
              {
                "id": "decimals",
                "value": 2