From 1fca1f6f044052331e68f6472292dcb846c473d0 Mon Sep 17 00:00:00 2001
From: lyang24 <lanqingy@usc.edu>
Date: Wed, 21 Feb 2024 21:06:22 -0800
Subject: [PATCH] ui: add charts on gc assist metric

This commit adds a line chart contains gc assist duration on the runtime page.
The goal is to present the estimated time user go routines spend on assisting
gc tasks.

Informs: https://github.com/cockroachdb/cockroach/pull/118875

Release note: None
---
 .../nodeGraphs/dashboards/runtime.tsx           | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/pkg/ui/workspaces/db-console/src/views/cluster/containers/nodeGraphs/dashboards/runtime.tsx b/pkg/ui/workspaces/db-console/src/views/cluster/containers/nodeGraphs/dashboards/runtime.tsx
index 50420f41ff70..84ed68af669c 100644
--- a/pkg/ui/workspaces/db-console/src/views/cluster/containers/nodeGraphs/dashboards/runtime.tsx
+++ b/pkg/ui/workspaces/db-console/src/views/cluster/containers/nodeGraphs/dashboards/runtime.tsx
@@ -138,6 +138,23 @@ export default function (props: GraphDashboardProps) {
       </Axis>
     </LineGraph>,
 
+    <LineGraph
+      title="GC Assist Time"
+      sources={nodeSources}
+      tenantSource={tenantSource}
+      tooltip={`Estimated total CPU time user goroutines spent performing GC tasks on processors
+        ${tooltipSelection}.`}
+      showMetricsInTooltip={true}
+    >
+      <Axis units={AxisUnits.Duration} label="gc assist time">
+        <Metric
+          name="cr.node.sys.gc.assist.ns"
+          title="GC Assist Time"
+          nonNegativeRate
+        />
+      </Axis>
+    </LineGraph>,
+
     <LineGraph
       title="CPU Time"
       sources={nodeSources}