"expr": "(histogram_quantile(0.50, sum(irate(istio_request_duration_milliseconds_bucket{reporter=~\"$qrep\",destination_service=~\"$service\"}[1m])) by (le)) / 1000) or histogram_quantile(0.50, sum(irate(istio_request_duration_seconds_bucket{reporter=~\"$qrep\",destination_service=~\"$service\"}[1m])) by (le))",
          "format": "time_series",
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "P50",

          "format": "time_series",
          "interval": "",
          "intervalFactor": 1,

	latencyQuery := fmt.Sprintf(`histogram_quantile(%f, sum(rate(%s_bucket{%s=~"%s.*", %s=~"%s.*",reporter="destination"}[%s])) by (le))`,
		quantile, reqDur, destWorkloadLabel, workloadName, destWorkloadNamespaceLabel, workloadNamespace, duration)

	letency, err := vectorValue(promAPI, latencyQuery)
	if err != nil {
		return time.Duration(0), err
	}

          },
          "expr": "label_join((histogram_quantile(0.50, sum(rate(istio_request_duration_milliseconds_bucket{reporter=\"source\"}[1m])) by (le, destination_workload, destination_workload_namespace)) / 1000) or histogram_quantile(0.50, sum(rate(istio_request_duration_seconds_bucket{reporter=\"source\"}[1m])) by (le, destination_workload, destination_workload_namespace)), \"destination_workload_var\", \".\", \"destination_workload\", \"destination_workload_namespace\")",

                "type": "prometheus",
                "uid": "${datasource}"
              },
              "expr": "histogram_quantile(0.5, sum(rate(pilot_proxy_convergence_time_bucket[1m])) by (le))",
              "format": "time_series",
              "intervalFactor": 1,
              "legendFormat": "p50 ",
              "refId": "A"
            },
            {
              "datasource": {