View difference between Paste ID: 6UNAcSHw and Q28w0k4b

 #include <atomic>
 
 #define WORKLOAD (500000)
 
 class Work
 {
 public:
 	int DataA[WORKLOAD];
 	int DataB[WORKLOAD];
 	int DataC[WORKLOAD];
 
 	std::atomic<size_t> Updates = 0;
 
 	Work()
 	{
 		for (int i = 0; i < WORKLOAD; ++i)
 		{
 			DataA[i] = 10;
 			DataB[i] = 10;
 			DataC[i] = 10;
 		}
 	}
 
 	void Do()
 	{
 		for (int i = 0; i < WORKLOAD; ++i)
 		{
 			DataC[i] = DataC[i] + DataA[i] + DataB[i];
 		}
 		Updates.fetch_add(1);
 	}
 
 };
 
 bool Run = true;
 #define T_CNT (1)
 ThreadPool Threads;
 Work WorlObj;
 
 void WorkerFunction()
 {
 	ThreadPool::Progress LocalProgress = 0;
 	while (Run)
 	{
 		WorlObj.Do();
 		Threads.Sync(LocalProgress);
 		WorlObj.Do();
 		Threads.Sync(LocalProgress);
 	}
 }
 
 int main()
 {
 	//Test einstellen
 	int UseThreads = 4;
 	int TestTime = 50;
 	int TestLoops = 100;
 
 	printf("testing... need %i ms\n", TestLoops* TestTime);
 
 	//threads starten
 	Threads.Start<std::function<void()>>([&](){ WorkerFunction(); }, UseThreads);
 
 	//schenllsten finden
 	WorlObj.Updates = 0;
 	int MaxUpdate = 0;
 	while (TestLoops > 0)
 	{
 		--TestLoops;
 		Sleep(TestTime);
 		if (WorlObj.Updates > MaxUpdate)
 			MaxUpdate = WorlObj.Updates;
 		WorlObj.Updates = 0;
 	}
 
 	//ausgabe
 	printf("MaxUpdate: %i\n", MaxUpdate);
 
 	//beenden
 	Run = false;
 	Threads.Join();
 	std::getchar();
 
 	return 0;
 }