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Re: tools to improve harddisk performance by short-stroking?

On Fri, Oct 08, 2010 at 08:33:01AM +0800, Zhang Weiwu wrote:

> To find out infrequently accessed file you need accounting. To find
> rarely accessed file you only need to look at atime.

How do you determine the atime without accessing the file, or keeping
some sort of accounting? How do you update that accounting without
accessing the file? What happens when a bunch of files are seen to be
rarely accessed? What happens when you start using some of these files?

How can you tell how often a file is accessed just by looking at the
last time it was accessed?

Just some food for thought.


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