Date: Thu, 05 Jan 2006 01:07:28 +0000 From: Mark Ovens <marko@freebsd.org> To: freebsd-stable@freebsd.org Subject: Re: RELENG_6: Which scheduler for SMP? Message-ID: <43BC7150.1020009@freebsd.org> In-Reply-To: <E1Erhri-000Bgg-P9@dilbert.firstcallgroup.co.uk> References: <E1Erhri-000Bgg-P9@dilbert.firstcallgroup.co.uk>
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Pete French wrote: >> What I am trying to decide is whether there any point in making the jump >> from a very stable RELENG_5 system to RELENG_6. AIUI the ULE scheduler >> and it's associated options optimize the use of multiple CPUs and by >> staying with 4BSD I'm not getting the best performance from my system. > > I'm not using ULE either - but I got a 15 percent speedup out of our SMP > systems when moving from RELENG_5 to 6.0-RELEASE. Definitely worth doing > in my opinion and am now upgrading all the production systems to 6.0 > >> Can anyone offer any advice on this please? > > Yes, do it. Its a definite improvement. > OK, I've done it, and am pleased with the result :) Thanks to everyone for the info about the current state of ULE. I'm sticking with 4BSD as the box is rock solid with that. Regards, Mark
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