C#自旋的艺术

CODE1:

			while (status == ServerStatus.Started)
			{
				if (*TaskLocker > 0)
				{
					for (int i = 0; i != *Level; i++)
					{
						ComputeListenerMemory memory = memories[i];
						if (*memory.Flag == 0x01)
						{
							Interlocked.Decrement(ref *TaskLocker);
							*memory.Flag = 0x03;
							Parallel.Invoke(memory.BeginComputeHandler);
						}
					}
				}
			}

 

CODE2:

			while (status == ServerStatus.Started)
			{
				if (*TaskLocker > 0)
				{
					for (int i = 0; i != *Level; i++)
					{
						ComputeListenerMemory memory = memories[i];
						if (*memory.Flag == 0x01)
						{
							Interlocked.Decrement(ref *TaskLocker);
							*memory.Flag = 0x03;
							Parallel.Invoke(memory.BeginComputeHandler);
						}
					}
				}
				spin.SpinOnce();
			}

　　

　

CODE3:

			while (status == ServerStatus.Started)
			{
				if (*TaskLocker > 0)
				{
					for (int i = 0; i != *Level; i++)
					{
						ComputeListenerMemory memory = memories[i];
						if (*memory.Flag == 0x01)
						{
							Interlocked.Decrement(ref *TaskLocker);
							*memory.Flag = 0x03;
							Parallel.Invoke(memory.BeginComputeHandler);
						}
					}
				}
				else
				{
					spin.SpinOnce();
				}
			}

　　

 

CODE1响应速度最快 约4ms 但是至少占用了CPU资源10%

CODE2响应速度最慢 因为spin固定占用4ms 故约10ms 但是CPU资源占用降低到1%

CODE3是一个最佳平衡点,且CPU占用率低