[cherry-pick ]*: update pd metrics (#771)

scripts/disk_performance.json

@@ -46,7 +46,7 @@
   "gnetId": null,
   "graphTooltip": 1,
   "id": null,
-  "iteration": 1561710257860,
+  "iteration": 1562916952771,
   "links": [
     {
       "icon": "doc",
@@ -57,7 +57,7 @@
       "title": "Report",
       "tooltip": "Open a pdf report for the current dashboard",
       "type": "link",
-      "url": "http://10.0.1.8:38686/api/report/test-cluster-disk-performance?apitoken=eyJrIjoiUDl1cTdtNHp2QTMwQUtjY25EdU4yMzFWODBEVHlRWVEiLCJuIjoiZ3JhZmFuYV9hcGlrZXkiLCJpZCI6MX0="
+      "url": "http://10.0.1.8:38686/api/report/test-cluster-disk-performance?apitoken=eyJrIjoiMWxwUmtwUFd2c2VjRzhmNWR1TWZDN1gySjdiNHYza0IiLCJuIjoiZ3JhZmFuYV9hcGlrZXkiLCJpZCI6MX0="
     }
   ],
   "panels": [
@@ -159,19 +159,19 @@
       },
       "yaxes": [
         {
-          "format": "ms",
+          "format": "s",
           "label": "",
           "logBase": 2,
           "max": null,
-          "min": 0,
+          "min": null,
           "show": true
         },
         {
-          "format": "ms",
+          "format": "s",
           "label": "",
           "logBase": 1,
           "max": null,
-          "min": 0,
+          "min": null,
           "show": true
         }
       ],
@@ -872,7 +872,7 @@
       }
     }
   ],
-  "refresh": false,
+  "refresh": "30s",
   "schemaVersion": 18,
   "style": "dark",
   "tags": [],
@@ -994,7 +994,7 @@
     ]
   },
   "time": {
-    "from": "now-12h",
+    "from": "now-1h",
     "to": "now"
   },
   "timepicker": {
@@ -1031,5 +1031,5 @@
   "timezone": "browser",
   "title": "Test-Cluster-Disk-Performance",
   "uid": "q2MgvJVWk",
-  "version": 5
+  "version": 8
 }