src/vs/workbench/services/extensions/electron-browser/extensionHostProfiler.ts/ExtensionHostProfiler/start
class ExtensionHostProfiler:	public async start(): Promise<ProfileSession> {
		const profiler = await import('v8-inspect-profiler');
		const session = await profiler.startProfiling({ port: this._port, checkForPaused: true });
		return {
			stop: async () => {
				const profile = await session.stop();
				const extensions = await this._extensionService.getExtensions();
				return this.distill((profile as any).profile, extensions);
			}
		};
	}