Add --userTimingBlockList

lib/core/engine/command/measure.js

@@ -6,7 +6,10 @@ import { timestamp as _timestamp } from '../../../support/engineUtils.js';
 import { Video } from '../../../video/video.js';
 import { pathToFolder } from '../../../support/pathToFolder.js';
 import { setOrangeBackground } from '../../../video/screenRecording/setOrangeBackground.js';
-import { filterAllowlisted } from '../../../support/userTiming.js';
+import {
+  filterAllowlisted,
+  filterBlocklisted
+} from '../../../support/userTiming.js';
 import { isAndroidConfigured, Android } from '../../../android/index.js';
 import { TCPDump } from '../../../support/tcpdump.js';
 import { lcpHighlightScript as highlightLargestContentfulPaint } from './util/lcpHighlightScript.js';
@@ -643,6 +646,14 @@ export class Measure {
       );
     }
 
+    if (this.options.userTimingBlockList) {
+      filterBlocklisted(
+        this.result[this.numberOfMeasuredPages].browserScripts.timings
+          .userTimings,
+        this.options.userTimingAllowList
+      );
+    }
+
     if (isAndroidConfigured(this.options) && this.options.processStartTime) {
       const packageName =
         this.options.browser === 'firefox'

lib/support/cli.js

@@ -1255,6 +1255,10 @@ export function parseCommandLine() {
       describe:
         'All userTimings are captured by default this option takes a regex that will allow which userTimings to capture in the results.'
     })
+    .option('userTimingBlockList', {
+      describe:
+        'All userTimings are captured by default this option takes a regex that will block some usertimings in the results.'
+    })
     .option('headless', {
       type: 'boolean',
       default: false,

lib/support/userTiming.js

@@ -5,3 +5,13 @@ export function filterAllowlisted(userTimings, allowlistRegex) {
     allowed.test(measure.name)
   );
 }
+
+export function filterBlocklisted(userTimings, blocklistRegex) {
+  const blocked = new RegExp(blocklistRegex);
+  userTimings.marks = userTimings.marks.filter(
+    mark => !blocked.test(mark.name)
+  );
+  userTimings.measures = userTimings.measures.filter(
+    measure => !blocked.test(measure.name)
+  );
+}