Date: Wed, 16 Apr 2003 15:20:48 -0500 (CDT) From: James Schmidt <james@JamesSchmidt.Com> To: george donnelly <list@zettai.net> Cc: FreeBSD Q's <freebsd-questions@freebsd.org> Subject: Re: freebsd 4.7, 5.0, SMP and hyper-threading Message-ID: <20030416151744.K39161-100000@speedy.insekure.com> In-Reply-To: <BAC30540.27CE8%list@zettai.net>
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On Wed, 16 Apr 2003, george donnelly wrote: > I'm reading up on SMP and I'm wondering about this: > > I run an app that is threaded but is not specifically designed to take > advantage of SMP. Based on my readings about FreeBSD and SMP I think this > app can still take advantage of SMP because 2 threads can each access one of > the two CPU's at a given time. > > Is this correct? I'm no expert, but I'd say yes, if the application was designed as a threaded application. > > Also one on machine i'm running FreeBSD 4.7 with 2 XEON 2.0 processors. Is > hyper-threading enabled in this situation? This I feel pretty confident answering, and the answer is 'No', having recently upgraded my dual Xeon box from 4.7 to 4.8 specifically to take advantage of the new support for HyperThreading available in 4.8. I believe it's possible to get HTT support in 4.7, but it requires a patch which, If I'm not mistaken, isn't easily installed and not as reliable (someone please correct me if I'm wrong). > thanks! > > (btw the app is Zope) > > <--> > george donnelly - http://www.zettai.net/ - "We Love Newbies" :) > Zope Hosting - Dynamic Website Design - Search Engine Promotion > Yahoo, AIM: zettainet - MSN: zettainet@hotmail.com - ICQ: 51907738 > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >
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