latency.json

{
  "title": "Service Latencies",
  "xyChart": 
    {
      "dataSets": [
        {
          "plotType": "LINE",
          "timeSeriesFilter": 
            {
              "filter": "resource.type=\"k8s_container\" 
                AND metric.type=\"istio.io/service/server/response_latencies\" 
                AND metric.labels.response_code=200",
              "perSeriesAligner": "ALIGN_SUM",
              "crossSeriesReducer": "REDUCE_PERCENTILE_99",
              "groupByFields": [
                "metric.labels.destination_service_name"
                ]
              }
          }
          ]
      }
}