Date: Wed, 10 Aug 2005 13:10:05 -0700 From: Frank Mayhar <frank@exit.com> To: John Baldwin <jhb@freebsd.org> Cc: Andre Oppermann <andre@freebsd.org>, freebsd-arch@freebsd.org Subject: Re: Special schedulers, one CPU only kernel, one only userland Message-ID: <1123704605.54957.8.camel@realtime.exit.com> In-Reply-To: <200508100911.50004.jhb@FreeBSD.org> References: <42F9ECF2.8080809@freebsd.org> <200508100911.50004.jhb@FreeBSD.org>
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On Wed, 2005-08-10 at 09:11 -0400, John Baldwin wrote: > I think this is the model that BSD/OS employed > for SMP in its 4.x series before they did their version of SMPng. I didn't grunge around in the scheduler (much), but as far as I'm aware BSD/OS 4.x used the Big Giant Lock mechanism just as FreeBSD did, and for the same reason. -- Frank Mayhar frank@exit.com http://www.exit.com/ Exit Consulting http://www.gpsclock.com/ http://www.exit.com/blog/frank/
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