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Date:      Fri, 20 Mar 2009 11:57:00 -0800
From:      Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net>
To:        Matt Juszczak <matt@atopia.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: MySQL 5.0 on FreeBSD 7
Message-ID:  <200903201157.01180.mel.flynn+fbsd.questions@mailing.thruhere.net>
In-Reply-To: <alpine.BSF.2.00.0903201444500.37325@pluto.atopia.net>
References:  <alpine.BSF.2.00.0903201338190.29988@pluto.atopia.net> <200903201015.00654.mel.flynn+fbsd.questions@mailing.thruhere.net> <alpine.BSF.2.00.0903201444500.37325@pluto.atopia.net>

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On Friday 20 March 2009 10:46:20 Matt Juszczak wrote:
> > You're confusing linux-threads with pthreads. The performance boosts
> > mentioned are done using the FreeBSD Posix threads ("pthreads") library,
> > in FreeBSD 7.x they are implemented using libthr(3).
> > The benchmarks also assume you are using SCHED_ULE, rather then
> > SCHED_4BSD. Nothing should be configured if you run GENERIC later then
> > 7.0-RELEASE.
>
> Mel,
>
> So, from a standard FreeBSD 7.x install:
>
> - Recompile kernel to use SCHED_ULE

7.1 and 7-STABLE later then feb 2008 all have SCHED_ULE as default.
Only 7.0-RELEASE has SCHED_4BSD as default.

> - In the port, use:  BUILD_OPTIMIZED=yes
> - In the port, use:  WITH_PROC_SCOPE_PTH=yes
> - In the port, use:  BUILD_STATIC=yes

Yes. If you don't mind loosing the ability to kill off sleeping connections, 
you can add WITHOUT_THR_ALARM.

> And that should be it?  So the "libpthread" they discuss in the
> description for WITH_PROC_SCOPE_PTH is different than the linux pthreads?

Yes. Linux threads is a port of the linux threading library 
(devel/linuxthreads).
-- 
Mel



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