Re: Using "noatime" mount-flag to improve performance ?

Hi!

The access timestamp shouldn't be an issue with raw devices and modern filesystems for databases such is veritas (AFAIK), but yes, it could help somewhat with standard generic filesystems in case the additional IO causes a bottleneck.

Tanel.

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, August 20, 2003 10:04 AM

> uness you've external reasons for caring about access time updates to your
> datafiles, I'd recommend turning it off so that you don't have the extra
writes
> going to disk.
>
> >
> >
> > I've recently come across references to setting
> > the "noatime" attribute to improve performance
> > of a Database server because Unix does not then
> > need to update the "last-access time" for each file.
> >
> > e.g. the Oracle for Linux tuning paper at
> >

http://otn.oracle.com/oramag/webcolumns/2002/techarticles/scalzo_linux01.html
> > also mentions this.
> >
> > Has anyone used this on Unix [Solaris/AIX/HPUX/Tru64]
> > servers ?
> >
> > Hemant K Chitale
> > http://hkchital.tripod.com
> >
>
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-- 
Author: Tanel Poder
  INET: tanel.poder.003_at_mail.ee

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