1 files changed, 50 insertions, 0 deletions
diff --git a/app/assets/javascripts/pipelines/components/graph/perf_utils.js b/app/assets/javascripts/pipelines/components/graph/perf_utils.js
new file mode 100644
index 00000000000..3737a209f5c
--- /dev/null
+++ b/app/assets/javascripts/pipelines/components/graph/perf_utils.js
@@ -0,0 +1,50 @@
+import {
+  PIPELINES_DETAIL_LINKS_MARK_CALCULATE_START,
+  PIPELINES_DETAIL_LINKS_MARK_CALCULATE_END,
+  PIPELINES_DETAIL_LINKS_MEASURE_CALCULATION,
+  PIPELINES_DETAIL_LINK_DURATION,
+  PIPELINES_DETAIL_LINKS_TOTAL,
+  PIPELINES_DETAIL_LINKS_JOB_RATIO,
+} from '~/performance/constants';
+
+import { performanceMarkAndMeasure } from '~/performance/utils';
+import { reportPerformance } from '../graph_shared/api';
+
+export const beginPerfMeasure = () => {
+  performanceMarkAndMeasure({ mark: PIPELINES_DETAIL_LINKS_MARK_CALCULATE_START });
+};
+
+export const finishPerfMeasureAndSend = (numLinks, numGroups, metricsPath) => {
+  performanceMarkAndMeasure({
+    mark: PIPELINES_DETAIL_LINKS_MARK_CALCULATE_END,
+    measures: [
+      {
+        name: PIPELINES_DETAIL_LINKS_MEASURE_CALCULATION,
+        start: PIPELINES_DETAIL_LINKS_MARK_CALCULATE_START,
+      },
+    ],
+  });
+
+  window.requestAnimationFrame(() => {
+    const duration = window.performance.getEntriesByName(
+      PIPELINES_DETAIL_LINKS_MEASURE_CALCULATION,
+    )[0]?.duration;
+
+    if (!duration) {
+      return;
+    }
+
+    const data = {
+      histograms: [
+        { name: PIPELINES_DETAIL_LINK_DURATION, value: duration / 1000 },
+        { name: PIPELINES_DETAIL_LINKS_TOTAL, value: numLinks },
+        {
+          name: PIPELINES_DETAIL_LINKS_JOB_RATIO,
+          value: numLinks / numGroups,
+        },
+      ],
+    };
+
+    reportPerformance(metricsPath, data);
+  });
+};