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Date: Mon, 14 Jun 2004 17:43:05 -0400 (EDT)
From: Robert Watson <rwatson@freebsd.org>
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To: Lasse Laursen <laursen@netgroup.dk>
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cc: freebsd-threads@freebsd.org
cc: mike <mike@mike2k.com>
cc: freebsd-current@freebsd.org
Subject: Re: Possible Threading problem with -CURRENT / MySQL?
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On Mon, 14 Jun 2004, Lasse Laursen wrote:

> Also on a SMP machine? I think that the problem is somehow related to
> SMP machines since the problems started when we moved to a SMP box :(

If you haven't already, it would certainly be worth removing SMP from the
kernel on that box and just running a UP kernel to confirm that it's a
problem using SMP.  I don't doubt it's the case, but it's worth checking
anyway to be sure.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org      Senior Research Scientist, McAfee Research


>=20
> Regards
> --
> Lasse Laursen =B7 VP, Hosting Technology =B7 NetGroup Processing Aps
> St. Kongensgade 40H =B7 DK-1264 Copenhagen K, Denmark
> Phone: +45 3370 1526 =B7 Fax: +45 3313 0066
>=20
> - Don't be fooled by cheap finnish imitations - BSD is the One True Code
> ----- Original Message -----=20
> From: "Petri Helenius" <pete@he.iki.fi>
> To: "mike" <mike@mike2k.com>
> Cc: "Lasse Laursen" <laursen@netgroup.dk>; <freebsd-current@freebsd.org>;
> <freebsd-threads@freebsd.org>
> Sent: Monday, June 14, 2004 10:37 PM
> Subject: Re: Possible Threading problem with -CURRENT / MySQL?
>=20
>=20
> > mike wrote:
> >
> > >linux runs almost 2x as fast on the same hardware with no configuring =
-
> > >and we get nearly the same results running in single CPU mode vs. dual
> CPU
> > >mode on fbsd... something is definately fubar with the mysql+fbsd5.x
> > >combination.
> > >
> > >
> > >
> > mysql runs fine on freebsd 5.x both with linuxthreads and pthreads (on
> > -CURRENT). 5.2.1 release was broken though.
> > This is on i386.
> >
> > Pete
> >
> >
>=20
>=20
> _______________________________________________
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>=20