Re: [OT] noatime

["Kevin A. McGrail" <suppressed>]

It absolutely helps performance.  Atime is access time.  Otherwise basically 
everytime a file is accessed, the atime is updated.  This causes a lot of 
little writes to the hard drive constantly.

I have recently begun turning it off on our servers in the past 2 years 
because in 10 years, I've never looked at the record for any purpose 
whatsoever.  I'm sure if you need to know the last time the file was 
accessed, this would be bad to turn off though.  However, for all practical 
purposes, the mtime (modified time) is what people want.

regards,
KAM

> Most of the apache tuning guides, as well as the MySQL docs, recommend 
> turning off atime on your filesystem (setting noatime).  Are other people 
> doing this?  Do you know if it has helped with performance?  Have you 
> found any problems with it?