[Perfomance] Add is_initial_load meta

src/core/packages/analytics/browser-internal/src/track_performance_measure_entries.ts

@@ -75,6 +75,7 @@ export function trackPerformanceMeasureEntries(analytics: AnalyticsClient, isDev
               target,
               query_range_secs: meta?.queryRangeSecs,
               query_offset_secs: meta?.queryOffsetSecs,
+              is_initial_load: meta?.isInitialLoad,
             },
           });
         } catch (error) {

src/platform/packages/shared/kbn-ebt-tools/src/performance_metrics/context/measure_interaction/index.ts

@@ -18,11 +18,13 @@ import { EventData } from '../performance_context';
 interface PerformanceMeta {
   queryRangeSecs: number;
   queryOffsetSecs: number;
+  isInitialLoad: boolean;
 }
 
 export function measureInteraction() {
   performance.mark(perfomanceMarkers.startPageChange);
-  const trackedRoutes: string[] = [];
+  const trackedRoutes = new Set<string>();
+
   return {
     /**
      * Marks the end of the page ready state and measures the performance between the start of the page change and the end of the page ready state.
@@ -46,22 +48,21 @@ export function measureInteraction() {
           queryRangeSecs: getTimeDifferenceInSeconds(dateRangesInEpoch),
           queryOffsetSecs:
             rangeTo === 'now' ? 0 : getOffsetFromNowInSeconds(dateRangesInEpoch.endDate),
+          isInitialLoad: !trackedRoutes.has(pathname),
         };
       }
 
-      if (!trackedRoutes.includes(pathname)) {
-        performance.measure(pathname, {
-          detail: {
-            eventName: 'kibana:plugin_render_time',
-            type: 'kibana:performance',
-            customMetrics: eventData?.customMetrics,
-            meta: performanceMeta,
-          },
-          start: perfomanceMarkers.startPageChange,
-          end: perfomanceMarkers.endPageReady,
-        });
-        trackedRoutes.push(pathname);
-      }
+      performance.measure(pathname, {
+        detail: {
+          eventName: 'kibana:plugin_render_time',
+          type: 'kibana:performance',
+          customMetrics: eventData?.customMetrics,
+          meta: performanceMeta,
+        },
+        start: perfomanceMarkers.startPageChange,
+        end: perfomanceMarkers.endPageReady,
+      });
+      trackedRoutes.add(pathname);
     },
   };
 }

src/platform/packages/shared/kbn-ebt-tools/src/performance_metrics/context/measure_interaction/measure_interaction.test.tsx

@@ -61,6 +61,7 @@ describe('measureInteraction', () => {
         meta: {
           queryRangeSecs: 900,
           queryOffsetSecs: 0,
+          isInitialLoad: true,
         },
       },
       end: 'end::pageReady',
@@ -88,6 +89,7 @@ describe('measureInteraction', () => {
         meta: {
           queryRangeSecs: 1800,
           queryOffsetSecs: 0,
+          isInitialLoad: true,
         },
       },
       end: 'end::pageReady',
@@ -115,6 +117,7 @@ describe('measureInteraction', () => {
         meta: {
           queryRangeSecs: 86400,
           queryOffsetSecs: -1800,
+          isInitialLoad: true,
         },
       },
       end: 'end::pageReady',
@@ -142,20 +145,40 @@ describe('measureInteraction', () => {
         meta: {
           queryRangeSecs: 86400,
           queryOffsetSecs: 1800,
+          isInitialLoad: true,
         },
       },
       end: 'end::pageReady',
       start: 'start::pageChange',
     });
   });
 
-  it('should not measure the same route twice', () => {
+  it('should set isInitialLoad to false on subsequent pageReady calls', () => {
     const interaction = measureInteraction();
     const pathname = '/test-path';
+    jest.spyOn(global.Date, 'now').mockReturnValue(1733704200000); // 2024-12-09T00:30:00Z
 
-    interaction.pageReady(pathname);
-    interaction.pageReady(pathname);
+    const eventData = {
+      meta: { rangeFrom: '2024-12-08T01:00:00Z', rangeTo: '2024-12-09T01:00:00Z' },
+    };
 
-    expect(performance.measure).toHaveBeenCalledTimes(1);
+    interaction.pageReady(pathname, eventData);
+    interaction.pageReady(pathname, eventData);
+
+    expect(performance.mark).toHaveBeenCalledWith(perfomanceMarkers.endPageReady);
+    expect(performance.measure).toHaveBeenCalledWith(pathname, {
+      detail: {
+        eventName: 'kibana:plugin_render_time',
+        type: 'kibana:performance',
+        customMetrics: undefined,
+        meta: {
+          queryRangeSecs: 86400,
+          queryOffsetSecs: 1800,
+          isInitialLoad: false,
+        },
+      },
+      end: 'end::pageReady',
+      start: 'start::pageChange',
+    });
   });
 });