deployment/logs-benchmark: update dashboard (#4500)

- remove second panel for disk usage. It is not very useful for users and brings more confusion than profit from having it.
- update CPU graph to show number of used CPUs to make it less ambiguous

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

deployment/logs-benchmark/grafana/dashboards/comparison.json

@@ -172,7 +172,7 @@
               }
             ]
           },
-          "unit": "percent"
+          "unit": "none"
         },
         "overrides": [
           {
@@ -237,13 +237,13 @@
             "uid": "P4169E866C3094E38"
           },
           "editorMode": "code",
-          "expr": "sum(rate(container_cpu_usage_seconds_total{name=~\"$containers\"})) by (name) *100",
+          "expr": "sum(rate(container_cpu_usage_seconds_total{name=~\"$containers\"})) by (name)",
           "legendFormat": "__auto",
           "range": true,
           "refId": "A"
         }
       ],
-      "title": "CPU Usage",
+      "title": "CPU cores usage",
       "type": "timeseries"
     },
     {
@@ -493,130 +493,6 @@
       ],
       "title": "Disk space used",
       "type": "timeseries"
-    },
-    {
-      "datasource": {
-        "type": "prometheus",
-        "uid": "P4169E866C3094E38"
-      },
-      "fieldConfig": {
-        "defaults": {
-          "color": {
-            "mode": "palette-classic"
-          },
-          "custom": {
-            "axisCenteredZero": false,
-            "axisColorMode": "text",
-            "axisLabel": "",
-            "axisPlacement": "auto",
-            "barAlignment": 0,
-            "drawStyle": "line",
-            "fillOpacity": 0,
-            "gradientMode": "none",
-            "hideFrom": {
-              "legend": false,
-              "tooltip": false,
-              "viz": false
-            },
-            "lineInterpolation": "linear",
-            "lineWidth": 1,
-            "pointSize": 5,
-            "scaleDistribution": {
-              "type": "linear"
-            },
-            "showPoints": "auto",
-            "spanNulls": false,
-            "stacking": {
-              "group": "A",
-              "mode": "none"
-            },
-            "thresholdsStyle": {
-              "mode": "off"
-            }
-          },
-          "mappings": [],
-          "thresholds": {
-            "mode": "absolute",
-            "steps": [
-              {
-                "color": "green",
-                "value": null
-              }
-            ]
-          },
-          "unit": "decbytes"
-        },
-        "overrides": [
-          {
-            "matcher": {
-              "id": "byRegexp",
-              "options": ".*vlogs.*"
-            },
-            "properties": [
-              {
-                "id": "color",
-                "value": {
-                  "fixedColor": "yellow",
-                  "mode": "fixed"
-                }
-              }
-            ]
-          },
-          {
-            "matcher": {
-              "id": "byRegexp",
-              "options": ".*elastic.*"
-            },
-            "properties": [
-              {
-                "id": "color",
-                "value": {
-                  "fixedColor": "green",
-                  "mode": "fixed"
-                }
-              }
-            ]
-          }
-        ]
-      },
-      "gridPos": {
-        "h": 11,
-        "w": 12,
-        "x": 12,
-        "y": 18
-      },
-      "id": 6,
-      "options": {
-        "legend": {
-          "calcs": [
-            "min",
-            "max",
-            "mean"
-          ],
-          "displayMode": "table",
-          "placement": "bottom",
-          "showLegend": true
-        },
-        "tooltip": {
-          "mode": "single",
-          "sort": "none"
-        }
-      },
-      "targets": [
-        {
-          "datasource": {
-            "type": "prometheus",
-            "uid": "P4169E866C3094E38"
-          },
-          "editorMode": "code",
-          "expr": "sum(delta(node_disk_usage_bytes{path=~\"$containers_selector\"}[1m])) by (path)",
-          "legendFormat": "__auto",
-          "range": true,
-          "refId": "A"
-        }
-      ],
-      "title": "Disk space used",
-      "type": "timeseries"
     }
   ],
   "refresh": "10s",
@@ -675,6 +551,6 @@
   "timezone": "",
   "title": "Elastic vs VLogs",
   "uid": "hkm6P6_4z",
-  "version": 1,
+  "version": 2,
   "weekStart": ""
 }