From owner-freebsd-questions@FreeBSD.ORG Sat Sep 15 21:35:13 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EBBEA16A41A for ; Sat, 15 Sep 2007 21:35:13 +0000 (UTC) (envelope-from josh.carroll@gmail.com) Received: from rv-out-0910.google.com (rv-out-0910.google.com [209.85.198.187]) by mx1.freebsd.org (Postfix) with ESMTP id AA8D213C46C for ; Sat, 15 Sep 2007 21:35:13 +0000 (UTC) (envelope-from josh.carroll@gmail.com) Received: by rv-out-0910.google.com with SMTP id l15so910079rvb for ; Sat, 15 Sep 2007 14:35:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=C0VxV0jMejosc2X/XCj1VopGzeDOBGbhdJcxpwT+2/w=; b=QXl4dms2CnZlKdYJcXrHVAzOjnKiUoL51BV89weObZfMyQ9AkFLZbZG244IG6DXGVg6yjQo+djEzk0Q9UGt2tRUg905szfcpc+TMkAbWRVTHgM30xERWVE62+HM5CRSZiwgCu1oyblcaU9vRt7+DQvK9c5ilxNLiEapL7a1p7UM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=POPRI9CiGzqUM9fKBj9eps6hymNQBr8+JH2FqNT2zLFZTmlzvM1vW9sNn8ZLO7LxxPG0k6SZKZdifbUKKYTU+9pN+fvqk+v3KQKWz+jQjwesKsQMMp4yMDcmuqfjLbO5MdA9k+AF32xuuuHRxFhjh0Qq5xsrPtLfAO1RrKT6h0s= Received: by 10.142.213.9 with SMTP id l9mr686574wfg.1189892113371; Sat, 15 Sep 2007 14:35:13 -0700 (PDT) Received: by 10.143.160.20 with HTTP; Sat, 15 Sep 2007 14:35:13 -0700 (PDT) Message-ID: <8cb6106e0709151435p72cd328by63895421f3a63ea4@mail.gmail.com> Date: Sat, 15 Sep 2007 17:35:13 -0400 From: "Josh Carroll" To: "Kris Kennaway" In-Reply-To: <46EC4F59.7070104@FreeBSD.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <26ddd1750709141351i3646e9bdg8d8b7e93461167f9@mail.gmail.com> <26ddd1750709151014x2112b022r9bcb999fbf1e7e49@mail.gmail.com> <46EC270A.3020100@FreeBSD.org> <8cb6106e0709151421h7bfdeb6fo7dc671820294e9c7@mail.gmail.com> <46EC4F59.7070104@FreeBSD.org> Cc: Maxim Khitrov , Aryeh Friedman , freebsd-questions@freebsd.org Subject: Re: Building a new workstation - dual or quad-core CPU for FreeBSD 7? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: josh.carroll@gmail.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Sep 2007 21:35:14 -0000 > 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