Function updateCpuProfiler

fdbserver/worker.actor.cpp:1104–1143

Starts or stops the CPU profiler

// Starts or stops the CPU profiler
void updateCpuProfiler(ProfilerRequest req) {
	switch (req.type) {
	case ProfilerRequest::Type::GPROF:
#if (defined(__linux__) || defined(__FreeBSD__)) && defined(USE_GPERFTOOLS) && !defined(VALGRIND)
		switch (req.action) {
		case ProfilerRequest::Action::ENABLE: {
			const char* path = (const char*)req.outputFile.begin();
			ProfilerOptions* options = new ProfilerOptions();
			options->filter_in_thread = &filter_in_thread;
			options->filter_in_thread_arg = nullptr;
			ProfilerStartWithOptions(path, options);
			break;
		}
		case ProfilerRequest::Action::DISABLE:
			ProfilerStop();
			break;
		case ProfilerRequest::Action::RUN:
			ASSERT(false); // User should have called runProfiler.
			break;
		}
#endif
		break;
	case ProfilerRequest::Type::FLOW:
		switch (req.action) {
		case ProfilerRequest::Action::ENABLE:
			startProfiling(g_network, {}, req.outputFile);
			break;
		case ProfilerRequest::Action::DISABLE:
			stopProfiling();
			break;
		case ProfilerRequest::Action::RUN:
			ASSERT(false); // User should have called runProfiler.
			break;
		}
		break;
	default:
		ASSERT(false);
		break;
	}
}

ACTOR Future<Void> runCpuProfiler(ProfilerRequest req) {
	if (req.action == ProfilerRequest::Action::RUN) {