Re: FAQ material I think (was: Performance question)

Clifton Royston wrote:

> Hear hear. A performance recommendations section would be great. I'd
> also like to see it documented there that the noatime mount option is
> safe to use on systems which support it; I wasn't sure at first whether
> I could turn it on or if Squid looked at file creation times, though
> since others use it (e.g. the benchmark stats) I assume it's safe.

The noatime option does not affect creation times.

On UNIX file systems each file have at least two timestamps:

* Last modification time
* Last access time
(and on some systems: Creation time, or last inode change time)

What noatime does is to turn off the updates of the last access time
timestamp. Cration/modification timestamps are maintained as usual.

--
Henrik Nordstrom
Spare time Squid hacker