如何在Windows下刷新磁盘读取缓存？ [英] How to flush the disk read cache under Windows?

问题描述

可能重复：

如何使文件系统缓存无效？

为了能够进行一些基准测试，我需要清理Windows磁盘 read 缓存。我该怎么做？

In order to be able to so some benchmarks I need to cleanup Windows disk read cache. How can I do this?

事实上，我想比较一下从磁盘加载大的Unicode文件（UTF-8或UTF-16）是否更快，考虑到在内存中，我确实保留了UTF-16。

In fact I want to compare if loading a big Unicode file (UTF-8 or UTF-16) from disk is faster or not, considering that in memory I do keep UTF-16.

我知道这应该没有太大的区别，但是为了对其进行基准测试，我需要确保该文件没有缓存-我需要查看磁盘上的大小

I know that it should be no significant difference but in order to benchmark it I need to be sure that that file is not cached - I need to see if size on disk has more or less impact than decoding the file.

推荐答案

到目前为止，我发现的唯一解决方案是 http://chadaustin.me/2009/04/flushing-disk-cache/ 但这需要时间太多，所以我希望我们会找到更好的时间。

The only solution I found so far was http://chadaustin.me/2009/04/flushing-disk-cache/ but this ones takes too much time so I hope we'll find a better one.

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