"step": 2
        },
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "expr": "go_memstats_heap_inuse_bytes{app=\"istiod\"}",
          "format": "time_series",
          "hide": false,
          "intervalFactor": 2,
          "legendFormat": "Heap in-use",
          "refId": "E",
          "step": 2

            },
            {
              "datasource": {
                "type": "prometheus",
                "uid": "${datasource}"
              },
              "expr": "go_memstats_heap_inuse_bytes{app=\"istiod\"}",
              "format": "time_series",
              "hide": false,
              "intervalFactor": 2,
              "legendFormat": "Heap in-use",
              "refId": "E",