From owner-freebsd-questions@FreeBSD.ORG Fri Nov 16 05:42:44 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 52DDA16A417 for ; Fri, 16 Nov 2007 05:42:44 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.179]) by mx1.freebsd.org (Postfix) with ESMTP id 105C513C43E for ; Fri, 16 Nov 2007 05:42:43 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: by py-out-1112.google.com with SMTP id u77so4152326pyb for ; Thu, 15 Nov 2007 21:42:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; bh=azeB/tA7w/Ydu51Dq/LmMgVk8jXItbW+/FFnvqfF+Y4=; b=sCQhD5Ah7qTDZKAZrY8itQW1se72SNJnS32Gq1/X4MewBsEnSZjnn66TSj0DV368E/tm4AWfzKglkw+2XCtMcSACXkyhpB4kVPdFxHZyUzL2zeGqsrHFuTS+PKta+xPeWOPN5agrcMPeOnIHO8TwjDtiu6EB1JSiZjRbyEaiPug= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=L9rgNxPjz7IPlFrswB0Y/ZDVCvDdI8MxUUrnk7DDTFJUKydpqDRecDUXuZjMiABr459o0lquCd/SUhv0KpkUDBYQ4QvRg8uhaoe9wLd4TkacMl/tw7H8bG44JdpMv59D2c09gKQF6petPQ/dah9URzEllu6WFVz0+iroUT8XReE= Received: by 10.65.159.19 with SMTP id l19mr3247795qbo.1195191751498; Thu, 15 Nov 2007 21:42:31 -0800 (PST) Received: from ?192.168.2.2? ( [67.85.89.184]) by mx.google.com with ESMTPS id f15sm1842565qba.2007.11.15.21.42.29 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 15 Nov 2007 21:42:29 -0800 (PST) Message-ID: <473D2DBD.2030100@gmail.com> Date: Fri, 16 Nov 2007 00:42:21 -0500 From: "Aryeh M. Friedman" User-Agent: Thunderbird 2.0.0.6 (X11/20071111) MIME-Version: 1.0 To: Garrett Cooper References: <473B6AF1.4010604@smo.de> <473B6C63.9060407@gmail.com> <200711151935.10550.freebsd@dfwlp.com> <473D1784.1040901@tundraware.com> <473D2C62.3040707@u.washington.edu> In-Reply-To: <473D2C62.3040707@u.washington.edu> X-Enigmail-Version: 0.95.5 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: tundra@tundraware.com, FreeBSD Mailing List Subject: Re: unimpressive buildworld time X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Nov 2007 05:42:44 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Garrett Cooper wrote: > Tim Daneliuk wrote: >> Jonathan Horne wrote: >>> On Wednesday 14 November 2007 03:45:07 pm Aryeh M. Friedman >>> wrote: >>>>> Impressive ;-) My main machine (with an Athlon XP @ 2GHz) >>>>> takes ~2 hours to build kernel and world (I use a script to >>>>> do that). My other box is running -CURRENT and takes ~11 >>>>> hours to build kernel and world (Celeron 500...). >>>>> >>>>> Just to supply some numbers that "go the other direction" >>>>> :-) >>>> With no -j and running gnome and doing other things in the >>>> foreground (watching a avi) 1 hr 3 mins on a e6850 w/ 4 gig >>>> (amd64) >>> >>> p4 540 3.2GHz, 1GB ram: >>> >>> -------------------------------------------------------------- >>>>>> World build completed on Thu Nov 15 19:15:05 CST 2007 >>> -------------------------------------------------------------- >>> >>> real 63m8.635s user 102m44.096s sys 10m44.889s >>> [root@athena /usr/src]# >>> >>> heh, i have appropriately renamed the thread. :) with -j 8 >>> >>> cheers, >> >> My Pentium-D 3G DualCore w/2G memory and a pretty vanilla SATA >> drive does buildworld and 3 different kernels in 68 minutes wall >> time building 6.3-PRE (aka -STABLE) using -j20. > > SMP kernels on STABLE (6.x) are going to perform worse than SMP > kernels on CURRENT (7-RELENG / 8-CURRENT), depending on the > scheduler used (4BSD vs ULE scheduler), as well as a variety of > other factors. > > Remember... performance not only depends upon clock speed or the > number of cores you have, but also what caching/prefetching scheme > FreeBSD uses (not sure if it's fetches large amounts infrequently > or small amounts frequently), how much memory is available to make > and its spawned processes (gcc, awk, etc), as well as the number of > processes active on the machine, and host usage (high disk usage, > high memory usage, etc). > > After reading through the thread, I noticed that people are making > comparing apples to oranges, as... Some people are taking this thread *WAY TOO SERIOUS* as far I can tell it is meant as a light hearted lets post funny numbers thread. - -- Aryeh M. Friedman Developer, not business, friendly http://www.flosoft-systems.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHPS2RJ9+1V27SttsRAteLAKCPAcEL9UIyBonCU4/5ZYUzejUhsACeOqL6 YFh9oTl8TkOmbfJXLvbueyE= =hDCA -----END PGP SIGNATURE-----