Date: Fri, 05 Nov 1999 16:30:59 -0800 From: Mike Smith <mike@smith.net.au> To: Kevin Street <street@iname.com> Cc: freebsd-smp@FreeBSD.ORG Subject: Re: Dual Celeron + FreeBSD? Message-ID: <199911060030.QAA00895@dingo.cdrom.com> In-Reply-To: Your message of "05 Nov 1999 19:31:20 EST." <87yaccv4tj.fsf@mired.eh.local>
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> > 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
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