Re: 40% IDE performance regression going from FC3 to FC5 with same kernel

[Arjan van de Ven <arjan@infradead.org>]

On Sat, 2006-04-08 at 18:27 +0200, Alessandro Suardi wrote:
> On 4/8/06, Arjan van de Ven <arjan@infradead.org> wrote:
> >
> > > Just for the record - no, even rebuilding same kernel with same GCC
> > >  (3.4.4) under FC5, disk performance is much slower than FC3 -
> > >  according to hdparm _and_ dd tests.
> >
> > what happens if you kill hald and other inotify using animals?
> 
> Thanks Arjan for looking into this.
> 
> Stopping hald brings hdparm from 18.5MB/s to 20MB/s, which is
>  indeed a noticeable improvement, though still far from the FC3
>  performance. I'm unsure what else can be stopped however
>  from this process list:
> 
>   274 ?        S<s    0:00 /sbin/udevd -d


try killing that one next; it may or may not help but it's sure worth a
try (esp given the success of the first kill :)