Date: Tue, 13 Feb 2007 13:18:32 +0300 From: "Abdullah Ibn Hamad Al-Marri" <almarrie@gmail.com> To: "Frank Altpeter" <frank@altpeter.de>, freebsd-questions@freebsd.org Subject: Re: SMP system threading performance question Message-ID: <499c70c0702130218n211912bdq9236b9fe53197b86@mail.gmail.com> In-Reply-To: <20070213085839.GA61365@corpex.de> References: <20070213085839.GA61365@corpex.de>
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On 2/13/07, Frank Altpeter <frank@altpeter.de> wrote: <snip> > The problem is quite disturbing, since that machine hosts a mysql database > which is performing low because half of the cpu power is not used at all. > I recompiled it with WITH_PROC_SCOPE_PTH=YES and with > WITH_LINUXTHREADS=YES but both didn't help, so i assume some OS related > reason for this to happen. > > > Happy for any hints, > > > Frank Altpeter You better use libthr with the MySQL instead of linuxthreads, and don't use HTT with FreeBSD since it hurts the performance. For more info about it check http://wiki.freebsd.org/MySQL Also check how to use it with libmap.conf to make mysql uses libthr as well. Good luck with it ;) -- Regards, -Abdullah Ibn Hamad Al-Marri Arab Portal http://www.WeArab.Net/
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