Add more stats to zuul performance metrics dashboard

These stats have recently been added to Zuul, so display them.

The timing and gauage stats which represent events may be better
visualized as lines with points -- lines so we can trace the changes
between events better when there are a lot of them, and points so
we can see the events themselves.  Existing graphs which could benefit
from this are updated.

Change-Id: If3e15757ebc34ca721e102018e1e6b74e344b67f

grafana/zuul-performance.yaml

@@ -41,12 +41,35 @@ dashboard:
             - label: size
               format: bytes
             - show: false
-        - title: Event Job Time
+        - title: Pipeline Handling Time
+          span: 6
+          targets:
+            - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.handling.mean, 6)
+          type: graph
+          nullPointMode: "connected"
+          points: true
+          yaxes:
+            - label: time
+              format: ms
+            - show: false
+        - title: Pipeline Processing Time
+          span: 6
+          targets:
+            - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.process.mean, 6)
+          type: graph
+          nullPointMode: "connected"
+          points: true
+          yaxes:
+            - label: time
+              format: ms
+            - show: false
+        - title: Event to First Job Time
           span: 6
           targets:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.event_job_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -57,6 +80,7 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.refresh.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -67,6 +91,7 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.read_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -77,16 +102,62 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.write_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
             - show: false
-        - title: Event Enqueue Time
+        - title: ZooKeeper Read Object Count
+          span: 6
+          targets:
+            - target: aliasByNode(stats.gauges.zuul.tenant.$tenant.pipeline.*.read_objects, 6)
+          type: graph
+          nullPointMode: "connected"
+          points: true
+          yaxes:
+            - label: count
+              format: short
+            - show: false
+        - title: ZooKeeper Write Object Count
+          span: 6
+          targets:
+            - target: aliasByNode(stats.gauges.zuul.tenant.$tenant.pipeline.*.write_objects, 6)
+          type: graph
+          nullPointMode: "connected"
+          points: true
+          yaxes:
+            - label: count
+              format: short
+            - show: false
+        - title: ZooKeeper Read Znode Count
+          span: 6
+          targets:
+            - target: aliasByNode(stats.gauges.zuul.tenant.$tenant.pipeline.*.read_znodes, 6)
+          type: graph
+          nullPointMode: "connected"
+          points: true
+          yaxes:
+            - label: count
+              format: short
+            - show: false
+        - title: ZooKeeper Write Znode Count
+          span: 6
+          targets:
+            - target: aliasByNode(stats.gauges.zuul.tenant.$tenant.pipeline.*.write_znodes, 6)
+          type: graph
+          nullPointMode: "connected"
+          points: true
+          yaxes:
+            - label: count
+              format: short
+            - show: false
+        - title: Event to Item Enqueue Time
           span: 6
           targets:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.event_enqueue_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -97,6 +168,7 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.merge_request_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -107,6 +179,7 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.layout_generation_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -117,6 +190,7 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.job_freeze_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -127,6 +201,7 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.repo_state_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -137,6 +212,7 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.node_request_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms
@@ -147,6 +223,18 @@ dashboard:
             - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.job_wait_time.mean, 6)
           type: graph
           nullPointMode: "connected"
+          points: true
+          yaxes:
+            - label: time
+              format: ms
+            - show: false
+        - title: Reconfiguration Time
+          span: 6
+          targets:
+            - target: aliasByNode(stats.timers.zuul.tenant.$tenant.pipeline.*.reconfiguration_time.mean, 6)
+          type: graph
+          nullPointMode: "connected"
+          points: true
           yaxes:
             - label: time
               format: ms