On 4/11/06, Andreas Mohr <[email protected]> wrote:
> Hi,
>
> On Sat, Apr 08, 2006 at 04:47:18PM +0200, Alessandro Suardi wrote:
> > I'll be filing a FC5 performance bug for this but would like an opinion
> > from the IDE kernel people just in case this has already been seen...
> >
> > I just upgraded my home K7-800, 512MB RAM box from FC3 to FC5
> > and noticed a disk performance slowdown while copying files around.
>
> Just another suggestion: try eliminating/pinpointing I/O scheduler issues
> (switch e.g. to "noop" at /sys/block/hda/queue/scheduler and compare again)
Thanks Andi. Tried every scheduler (my default is anticipatory) and
there aren't meaningful differences - 18.3 to 18.6MB/s.
As a further data point, my box can burn a 8x DVD+R at up to 7.1x
average speed under FC3, while it barely keeps up with 4x in FC5.
--alessandro
"Dreamer ? Each one of us is a dreamer. We just push it down deep because
we are repeatedly told that we are not allowed to dream in real life"
(Reinhold Ziegler)
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