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Date: Sun, 02 Dec 2007 00:23:15 +0200
To: "Alexey Vlasov" <renton@df.ru>, freebsd-stable@freebsd.org
From: "Reko Turja" <Reko.Turja@liukuma.net>
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Subject: Re: 2 x quad-core system is slower that 2 x dual core on FreeBSD
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On Sat, 01 Dec 2007 23:37:32 +0200, Alexey Vlasov <renton@df.ru> wrote:

> kernel:
> machine         i386
> cpu             I686_CPU
> ident           F1RNT1
>
> options         PAE

One very probable culprit for slowness

> options         SMP
>
> options         SCHED_4BSD

Using _ULE might yield a bit more performance as well

> # cat /etc/make.conf
> CPUTYPE?=3Dnocona
>
> CFLAGS=3D-O2 -pipe

I think the recommended practise is either use CFLAGS+=3D<your flags> or=
 put  =

the
local compiler tweaks to COPTFALGS these days. Not sure if this affects =
 =

performance tho'

-Reko