Send search events less often (#241406)

src/vs/base/common/numbers.ts

@@ -158,3 +158,8 @@ export const randomInt = (max: number, min: number = 0): number => {
 
 	return Math.round(min + randomFloat);
 };
+
+export function randomChance(p: number): boolean {
+	assert(p >= 0 && p <= 1, 'p must be between 0 and 1');
+	return Math.random() < p;
+}

src/vs/workbench/services/search/common/searchService.ts

@@ -10,6 +10,7 @@ import { CancellationError } from '../../../../base/common/errors.js';
 import { Disposable, IDisposable, toDisposable } from '../../../../base/common/lifecycle.js';
 import { ResourceMap, ResourceSet } from '../../../../base/common/map.js';
 import { Schemas } from '../../../../base/common/network.js';
+import { randomChance } from '../../../../base/common/numbers.js';
 import { StopWatch } from '../../../../base/common/stopwatch.js';
 import { isNumber } from '../../../../base/common/types.js';
 import { URI, URI as uri } from '../../../../base/common/uri.js';
@@ -355,6 +356,11 @@ export class SearchService extends Disposable implements ISearchService {
 	}
 
 	private sendTelemetry(query: ISearchQuery, endToEndTime: number, complete?: ISearchComplete, err?: SearchError): void {
+		if (!randomChance(5 / 100)) {
+			// Noisy events, only send 5% of them
+			return;
+		}
+
 		const fileSchemeOnly = query.folderQueries.every(fq => fq.folder.scheme === Schemas.file);
 		const otherSchemeOnly = query.folderQueries.every(fq => fq.folder.scheme !== Schemas.file);
 		const scheme = fileSchemeOnly ? Schemas.file :