From owner-freebsd-questions@FreeBSD.ORG Fri Nov 16 06:52:20 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 D031416A418 for ; Fri, 16 Nov 2007 06:52:20 +0000 (UTC) (envelope-from freysman@comcast.net) Received: from comcast-smtp-03.tampflrdc.rr.com (comcast-smtp-03.tampflrdc.rr.com [65.32.5.156]) by mx1.freebsd.org (Postfix) with ESMTP id A17D913C457 for ; Fri, 16 Nov 2007 06:52:20 +0000 (UTC) (envelope-from freysman@comcast.net) Received: from [192.168.1.105] (c-98-199-18-87.hsd1.tx.comcast.net [98.199.18.87]) by comcast-smtp-03.tampflrdc.rr.com (8.13.6/8.13.6) with ESMTP id lAG6pxId013985 for ; Fri, 16 Nov 2007 01:52:01 -0500 (EST) From: David J Brooks Organization: KC5WNK To: freebsd-questions@freebsd.org Date: Fri, 16 Nov 2007 00:51:59 -0600 User-Agent: KMail/1.9.7 References: <473D2C62.3040707@u.washington.edu> <473D2DBD.2030100@gmail.com> In-Reply-To: <473D2DBD.2030100@gmail.com> X-Face: =?utf-8?q?iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAIVBMVEX+7+6BM0I?= =?utf-8?q?yMg7+5f=0A=09rivGf+mZn////d5ucyM0Jjm2vOMzPtzkgwAAAAB3RJTUUHsQw?= =?utf-8?q?fFzs7RBhzUQAAAhJJREFU=0A=09OI1tk89q20AQxmWIY8htFwfLumkukR6gDxDY?= =?utf-8?q?IpJTVAg0PunQ7F4dkLTYR0GodCvCjazeFH=0A=09oo+5Sdlf/tWp6DJObHzDff7M?= =?utf-8?q?rhh5DcCufwsWovg1fS9G/x+wzE83wH6g8L/FAzPulV3kIL=0A=09rLv5ikK15DyF?= =?utf-8?q?3ASKgE8CCHL+Rn8ZIFGEKI+SIsw8C3ClmFKdT32l4M4E3fTmLyM+8dQ/sC=0A?= =?utf-8?q?=09ri6PHpq9dRQsAGmyVbjr2O+EVgj3u7YRH701EAsA3O23bDPA3erZUI8MtKa2?= =?utf-8?q?gnBkgWnQ/h=0A=09WIPQ2m6ilKKzTJ0BISceupveK4rrMivSaNGpEiGh8PMEEpmyNVr?= =?utf-8?q?GIMVh2L6CRakE3QwIhL=0A=09kBUsZyQXDxxIWGH0HK8pQ50Rc8D+KeCriT4C7Y4?= =?utf-8?q?+fTChdYHKV1qwmLsvvPRuBR0fDaAL1B=0A=09d77AqTqzlX6MlVv42gecAUFc9N?= =?utf-8?q?fhKTU24CPaGx8CvipRAY0PAI+xwL0ERuivLIJ8AG6gLA=0A=09EugLVywa9PyzU?= =?utf-8?q?ATjuthxqvOJVb1OEACNKhuCFy/AdrvGtQmEe7j7YOyjI8OdkDkbXbaltV=0A=09so?= =?utf-8?q?BKXh+ATB9KqEodufgOUDXLHsjIGW3Yi84X2Ei0KNdokD2nreNcbdsd0I1f4ENX?= =?utf-8?q?yOfpFX=0A=09vQFVU/rZDJt1BrTJbSkTGmm142iWeyvttPNZFZI3fmkhhvapgffR?= =?utf-8?q?wC8yRocj4AK/y5MM//=0A=09A2fdrlbSnOlbAAAAAElFTkSuQmCC?= MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200711160052.00058.freysman@comcast.net> X-Virus-Scanned: Symantec AntiVirus Scan Engine 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 06:52:20 -0000 On Thursday 15 November 2007 11:42:21 pm Aryeh M. Friedman wrote: > 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. And here I was thinking it was a 'my machine can beat up your machine' thread. ;) David -- Controlling you through microchips since 1999.