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Date: Fri, 10 Jun 2005 17:08:48 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: Tom Gidden <gid@lonres.com>
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Cc: freebsd-stable@freebsd.org, Guy Helmer <ghelmer@palisadesys.com>
Subject: Re: FreeBSD MySQL still WAY slower than Linux
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On Fri, Jun 10, 2005 at 10:04:23PM +0100, Tom Gidden wrote:
> Hi Guy,
>=20
> On 10 Jun 2005, at 21:37, Guy Helmer wrote:
> >
> >Have you tried a kernel with PREEMPTION enabled?  I haven't =20
> >quantified the effect, but it's improved performance in some =20
> >situations.
> >Have you tried increasing vfs.read_max?
>=20
> Thanks for your suggestions... I've given them a go, and it looks =20
> like there's no discernible difference in performance for either/=20
> both, on KSE, libthr or LinuxThreads.  =3D(

Did you retry with HTT yet?  Note that it's disabled by default in
FreeBSD, so if you see no performance improvement when you only turn
it on in the BIOS, that could be why.

Kris
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