Date: Sat, 15 Sep 2007 17:35:13 -0400 From: "Josh Carroll" <josh.carroll@gmail.com> To: "Kris Kennaway" <kris@freebsd.org> Cc: Maxim Khitrov <mkhitrov@gmail.com>, Aryeh Friedman <aryeh.friedman@gmail.com>, freebsd-questions@freebsd.org Subject: Re: Building a new workstation - dual or quad-core CPU for FreeBSD 7? Message-ID: <8cb6106e0709151435p72cd328by63895421f3a63ea4@mail.gmail.com> In-Reply-To: <46EC4F59.7070104@FreeBSD.org> References: <26ddd1750709141351i3646e9bdg8d8b7e93461167f9@mail.gmail.com> <bef9a7920709141441r5c228a8bu1fcf2ea15868c3c@mail.gmail.com> <26ddd1750709151014x2112b022r9bcb999fbf1e7e49@mail.gmail.com> <46EC270A.3020100@FreeBSD.org> <8cb6106e0709151421h7bfdeb6fo7dc671820294e9c7@mail.gmail.com> <46EC4F59.7070104@FreeBSD.org>
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> Yes, 4BSD is still the default, although you definitely want to use ULE > for performance reasons (NB: only on 7, dont use ULE on 6). I don't > know whether the release engineers plan to change that default, but I > will check. Great, thanks for the info. Good to know, I'll be sure to use ULE when 7.0 is released. :) > JFYI, buildworld is a really bad benchmark for testing SMP performance > in general (on 4 cpus it is not too bad), because the makefiles are not > written to efficiently parallelize builds on many CPUs, so large parts > end up running with only a single make job at a time. Understood, just a data point. :) Probably a better one: ffmpeg encoding H.264 content with -threads 8 is nearly 4x as fast as a single threaded ffmpeg process, so it's scaling well at least for ffmpeg (linked against pthread). Josh
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