From owner-freebsd-smp Fri Nov 5 16:40:19 1999 Delivered-To: freebsd-smp@freebsd.org Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (Postfix) with ESMTP id 23AD114A2D for ; Fri, 5 Nov 1999 16:40:09 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost.cdrom.com [127.0.0.1]) by dingo.cdrom.com (8.9.3/8.8.8) with ESMTP id QAA00895; Fri, 5 Nov 1999 16:30:59 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Message-Id: <199911060030.QAA00895@dingo.cdrom.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Kevin Street Cc: freebsd-smp@FreeBSD.ORG Subject: Re: Dual Celeron + FreeBSD? In-reply-to: Your message of "05 Nov 1999 19:31:20 EST." <87yaccv4tj.fsf@mired.eh.local> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 05 Nov 1999 16:30:59 -0800 From: Mike Smith Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > > Under 40 minutes is very hard on a current intel architecture box; the > > 4-way Xeon 400/256 that we have here will do about 39 even on -current > > as of a couple of weeks ago, with everything except $DESTDIR on an MFS. > > > > To go much faster will require more memory bandwidth, or possibly > > faster CPUs with more cache (not so sure about that part). > > Fri Oct 29 00:50:45 EDT 1999 > make -f Makefile.parallel -j 20 JPAR=2 -DCLOBBER -DNOPROFILE buildworld > make buildworld complete > Fri Oct 29 01:30:27 EDT 1999 > > 2384.21 real 2809.03 user 1337.21 sys > > elapsed 0:39:42 busy 86.95% > > Ok, so I cheated with -DNOPROFILE and I have a somewhat modified > bsd.subdir.mk that parallelizes some subdir builds in the "building > everything" phase of the make. This is with a dual 466 Celeron, 128M > 66Mhz FSB, no overclocking, Abit BP6. I'm using -pipe in > /etc/make.conf and /usr/src, /usr/obj and /tmp are all on a striped > vinum volume that resides on 2 IBM 9G 7200RPM SCSI drives with > softupdates. So stop cheating. I can get it down to a few hundredths of a second if I rewrite make thus: void main(void) { return(0); } But that doesn't measure anything at all. > I like the price compared to the 4 way Xeon! It was free. I'm not complaining. -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message