Date: Tue, 7 Aug 2001 00:04:55 -0700 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: <tlambert2@mindspring.com>, "Wes Peters" <wes@softweyr.com> Cc: "j mckitrick" <jcm@FreeBSD-uk.eu.org>, <freebsd-advocacy@FreeBSD.ORG> Subject: RE: time to step up to the SMP plate? Message-ID: <002301c11f0f$433b1300$1401a8c0@tedm.placo.com> In-Reply-To: <3B6F9145.54945750@mindspring.com>
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But this is all Intel SMP isn't it? My understanding is that few to nobody running Solaris on SMP systems with more than 4 CPU's is using Intel boxes, instead they are using Sun hardware. The other $64 question of course is what ever happened to the 64 bit Intel CPU architecture? Supposedly the speed increase by going to 64 bit on a uniproccessor system would be so incredibly overwhelming that you would be junking all your 4 and 8 CPU SMP systems, acccording to the marketing from Intel I read... ;-) Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com >-----Original Message----- >From: Terry Lambert [mailto:tlambert2@mindspring.com] >Sent: Monday, August 06, 2001 11:57 PM >To: Wes Peters >Cc: Ted Mittelstaedt; j mckitrick; freebsd-advocacy@FreeBSD.ORG >Subject: Re: time to step up to the SMP plate? > > >Wes Peters wrote: >> > Solaris already has good SMP, much better than Microsoft's. I >> > don't see that this was a factor. >> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >> Or just about anyone else's. Solaris probably has the best SMP >> scalability of anything out there in UNIX-land. They've been >> working on it for quite a while now. > >Solaris has the same 4 processor scaling limitation that >they inherited from SVR4.01 ES/MP. This is primarily the >result of their VM system, and their adoption of the SLAB >allocator. The just don't build boards with more than 4 >processors on them, so "it's not an issue". The 8-CPU >Xeon boards that Intel has been coming up with lately are >not going to run well without some serious architectural >changes... not that they seem to be supporting Solaris on >those things, anyway. That's why they do clustering to >get a lot of CPUs on a problem (e.g. the "Sun GridEngine" >that people have been looking at porting to FreeBSD). > >FreeBSD is setting itself up to be similarly limited; Linux >already is hitting its head on the same issue. > >NT has done some smart things up front to skirt these issues, >when the time comes. > >-- Terry > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-advocacy" in the body of the message
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