I can confirm the ext-4 problem (real experience)
Also see : http://www.firebirdnews.org/?p=6421

Forget XP32, can only use max 2 CPU core.

--- In firebird-support@yahoogroups.com, "trskopo" <trskopo@...> wrote:
>
>
>
> --- In firebird-support@yahoogroups.com, yanto_asnawi@ wrote:
> >
> > Hi,
> > I use intel core i7 and centos 6 64bit
> > Harddisk raid level 0, SATA wetern digital raptor
> >
> > performance : excellent.
> >
>
> Thanks for your reply. Could you be more specific about your specs for I7 and wd raptor?
>
> Also, do you use ext4 and forced write on on CentOS? I heard, there is problem when using ext4 file system and forced write on.
>
> best regards,
> Sugiarto
>