Date: Wed, 28 Dec 2005 15:14:46 -0500 From: Mike Jakubik <mikej@rogers.com> To: Mark Ovens <marko@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: RELENG_6: Which scheduler for SMP? Message-ID: <43B2F236.80903@rogers.com> In-Reply-To: <43B2F0A8.2030609@freebsd.org> References: <43B2F0A8.2030609@freebsd.org>
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Mark Ovens wrote: > I've never had any success with the ULE scheduler on my dual Athlon > box running RELENG_5; it was so unstable it made Windows 3.1 look > stable. In fact my current build, cvsup'd a couple of days ago, won't > even boot with ULE. > > From what I remember, ULE was intended to become the default scheduler > during the life of 5.0 but that hasn't happened. > > I've just cvsup'd the source for RELENG_6 and I'm surprised to find in > the GENERIC config file: > > #options SCHED_ULE # ULE scheduler > options SCHED_4BSD # 4BSD scheduler > > so it seems 4BSD is still the default scheduler. Is ULE _still_ > considered to be in development/experimental? Even the SMP config file > doesn't use ULE. There have been substantial improvements made to it since 5. However no one will be able to tell you if its 100% ready, you will just have to try it on your system.
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