On Tue, 7 Jun 2011 16:20:32 +0000 (UTC)
JB <jb.1234a...@gmail.com> wrote:

> Alan Cox <alan <at> lxorguk.ukuu.org.uk> writes:
> 
> > ...
> > Equally if Fedora has soem crappy background app that keeps writing
> > little bits of pointless data to the disk every second that'll do the job
> > nicely too.
> 
> I think you did not make this comment out of the blue ?

I've not looked into F15 disk performance, and as I never plan to run
FC15 I doubt I ever will. I'm skipping this release.

I can't specifically say FC15 has that problem but its something I've
seen chasing down I/O performance problems on systems. It doesn't
take much to give a disk a pile of extra seeks to do and that hurts
because seek times haven't changed in years and are now relatively very
expensive.

> So why not bring it (them) into the light and knock around a bit ?
> Btw, would that apply to kernel daemons as well ?

I've no interest in Fedora 15 and pinning it down is a fairly big job
involving various re-installs.

> Also it'd be interesting to know if you kept the OS default partitioning 
> scheme
> (in which case the Fedora install would likely have an LVM layer the Ubuntu 
> one
> would not.)
> 
> Yes, defaults.

Could be. Still fair benchmark because Fedora configures the disks that
way default.

Easy way to check - go do two installs on a box similar to the Phoronix
one and see what you get if you want to find out.

Alan
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