Windows Game Loop双核上有50％CPU [英] Windows Game Loop 50% CPU on Dual Core

问题描述

仅游戏循环就占用了50％的CPU使用率，我还没有完成任何渲染工作.我在这里做什么?

The game loop alone is using 50% of CPU Usage, I haven't done any rendering work yet. What I'm doing here?

        while(true)
        {
            if(PeekMessage(&msg,NULL,0,0,PM_REMOVE))
            {
                    if(msg.message == WM_QUIT || 
                           msg.message == WM_CLOSE || 
                           msg.message == WM_DESTROY)
                            break;

                    TranslateMessage(&msg);
                    DispatchMessage(&msg);                   
            }
            else
            {
                    //Run game code, break out of loop when the game is over

            }
        }

推荐答案

经典的忙/等待循环.您的CPU正在忙于检查(并无限检查广告)消息.您需要以阻塞的方式等待消息，或者更有可能的是，使用计时器定期唤醒您的游戏线程以使其正常工作.然后，游戏线程将消失，直到下一次唤醒为止.

Classic busy/wait loop. Your CPU is busily checking (and rechecking ad infinitum) for messages. You need to wait for messages in a blocking way or, more likely, use a timer that periodically wakes up your game thread so it can do its work. The game thread would then go away until the next time it is woken up.

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