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Re: [K12OSN] noatime mount option for better performance



On 8/9/07, Robert Arkiletian <robark gmail com> wrote:
> On 8/9/07, James P. Kinney III <jkinney localnetsolutions com> wrote:
> > From a performance aspect, the potential in LTSP is huge. Everytime a
> > client reads a file that runs the user interface, a disk write must also
> > happen if atime is on. From a standpoint of system control, do you
> > _really_ need to know when someone read a file? Maybe in a high-security
> > environment but in a school?
>
> Exactly.
>
> > Currently most system use mount options as defaults which are
> > default options: rw, suid, dev, exec, auto, nouser, and async
> >
> > so change an fstab line from
> > LABEL=/home  /home ext3 defaults 1 2
> > to:
> > LABEL=/home /home ext3  rw,suid,dev,exec,auto,nouser,async,noatime  1 2
> >
>
> How about just
> LABEL=/home  /home ext3 defaults,noatime 1 2
> also (for clarity) other mount points would benefit too.
>

Here are some interesting links
http://wiki.centos.org/HowTos/Disk_Optimization
http://www.ghidinelli.com/2006/01/17/postgres-812-benchmarks/
http://www.ghidinelli.com/workspace/postgres/postgres_20060116.html

I'm weighing the risk vs benefit of data=writeback

-- 
Robert Arkiletian
Eric Hamber Secondary, Vancouver, Canada
Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/
C++ GUI tutorial http://www3.telus.net/public/robark/


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