src/vs/workbench/api/browser/mainThreadExtensionService.ts/MainThreadExtensionService/$setPerformanceMarks
class MainThreadExtensionService:	async $setPerformanceMarks(marks: PerformanceMark[]): Promise<void> {
		if (this._extensionHostKind === ExtensionHostKind.LocalProcess) {
			this._timerService.setPerformanceMarks('localExtHost', marks);
		} else if (this._extensionHostKind === ExtensionHostKind.LocalWebWorker) {
			this._timerService.setPerformanceMarks('workerExtHost', marks);
		} else {
			this._timerService.setPerformanceMarks('remoteExtHost', marks);
		}
	}