为什么LRU比FIFO更好？ [英] Why is LRU better than FIFO?

问题描述

为什么最近最少使用比FIFO的关系比较好页面文件？

Why is Least Recently Used better than FIFO in relation to page files?

推荐答案

如果您在卸载内存页到磁盘方面的意思是 - 如果你的程序经常访问一个页面，你真的不希望它被分页到磁盘，即使是你访问的第一个之一。在另一方面，如果你还没有访问内存页面数天，这是不太可能会在不久的将来也会如此。

If you mean in terms of offloading memory pages to disk - if your process is frequently accessing a page, you really don't want it to be paged to disk, even if it was the very first one you accessed. On the other hand, if you haven't accessed a memory page for several days, it's unlikely that you'll do so in the near future.

如果这不是你的意思，请编辑您的问题透露更多的细节。

If that's not what you mean, please edit your question to give more details.

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