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Date:      Wed, 15 Nov 2006 08:19:33 -0500
From:      Bill Moran <wmoran@collaborativefusion.com>
To:        "Jeff Mohler" <speedtoys.racing@gmail.com>
Cc:        FreeBSD <freebsd-questions@freebsd.org>
Subject:   Re: Dual core processors
Message-ID:  <20061115081933.0c248177.wmoran@collaborativefusion.com>
In-Reply-To: <a969fbd10611141836s49ad5d7sfdc2c567eb1ee982@mail.gmail.com>
References:  <1163545085.492.20.camel@columbus.webtent.org> <8cb6106e0611141504sa4fbe00q8aeda6f869422d26@mail.gmail.com> <1163548016.492.26.camel@columbus.webtent.org> <b34be8420611141602n657e83fah6f965a3d9ddf600@mail.gmail.com> <a969fbd10611141613n1f0c562emcae8a279fe38bc68@mail.gmail.com> <b34be8420611141630o3f78c6aj7e689ffebaf68bcf@mail.gmail.com> <a969fbd10611141822r2da4c58eqdf92d2a2e1199681@mail.gmail.com> <b34be8420611141831x2cebfb3ey4238d31952025222@mail.gmail.com> <a969fbd10611141836s49ad5d7sfdc2c567eb1ee982@mail.gmail.com>

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In response to "Jeff Mohler" <speedtoys.racing@gmail.com>:

> Is a stock kernel config the 'fast' way to go on these CPUs?
> 
> Sure wish there was an 'options  I_WANNA_GO_FAST' or an  'options
> RICKY_BOBBY' that would just do all the right things.
> 
> Still not sure which scheduler to go with..

Unless something has changed very recently, most of the schedulers are
considered "experimental" and have known bugs.  The only one that I know
is stable is SCHED_4BSD.  Apparently, SCHED_ULE has some nice performance
improvements when it's not causing panics.

If you're not interested/capable in doing kernel debugging, you probably
want to go with SCHED_4BSD.  It would appear that some day SCHED_ULE will
replace it, but not yet.

-- 
Bill Moran
Collaborative Fusion Inc.



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