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Date:      Sun, 06 Feb 2000 13:20:00 -0800
From:      Kent Stewart <kstewart@3-cities.com>
To:        Charlie Root <ludwicza@home.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: celeron-smp slow?
Message-ID:  <389DE580.AB5B37F2@3-cities.com>
References:  <389DDEFD.DBB63C7B@home.com>

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Charlie Root wrote:
> 
> Hey,
> 
> Im running a Dual Celeron 433 with 128mb of pc100 ram, and I'm finding
> it uterly slow, I recompiled the kernel with only the things i need, and
> smp support, etc.  It runs about as well as without SMP, but things like
> Netscape take 10 seconds to load, vim takes about 3 full seconds
> (unconfigured), window maker (unconfigured) takes around 3 seconds too,
> after getting into X.  It runs **great** in Linux, but fbsd also ran
> **great** on my old p200, whereas linux didn't :-)  Does this seem odd?
> I rather run fbsd than linux for personal preference

Are you running your FSB are 100MHz because if you aren't, the
throughput of the Celeron's will be about like a P-II 300. I have a
FreeBSD system that I have been playing with. I started out with a 433
and PC-66 memory. Setiathome required around ~54,000 seconds to
complete a WU. I replaced the PC-66 memory with PC-100 and a WU
required around ~46,000 secs. I then replace the 433a with a 300a and
raised the FSB to 100MHz. I'm getting WU's in an average time of
34,000 secs. The ratio of the cmdline on a P-II 400 running Win2000 to
FreeBSD on the 433 was ~1.5 WU's to 1. This was a memory limited
calculation and showed it. The P-II 400 just did 1.5 times as much as
the Celeron did. The Celeron @450 is running cool and is producing
WU's at the same rate as a P-III 450.

The buildworlds only ran about 10% faster because they are I/O bound.
You can save a little time by having /usr/src on one IDE controller
and /usr/obj on the other.

If you are using IDE drives, the flags option on the wdc? controller
can really affect how fast netscape loads. I went from 2-3MB/s to
14.4MB/s on a benchmark by setting my "flags 0xa0ffa0ff" on the HD's.

Kent

> 
> thanks!
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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-- 
Kent Stewart
Richland, WA

mailto:kstewart@3-cities.com
http://www.3-cities.com/~kstewart/index.html
FreeBSD News http://daily.daemonnews.org/

SETI(Search for Extraterrestrial Intelligence) @ HOME
http://setiathome.ssl.berkeley.edu/

Hunting Archibald Stewart, b 1802 in Ballymena, Antrim Co., NIR
http://www.3-cities.com/~kstewart/genealogy/archibald_stewart.html


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