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Date:      Sat, 02 Dec 2000 11:43:58 -0800
From:      Kent Stewart <kstewart@urx.com>
To:        Luke Eckley <lukeeckley@yahoo.com>
Cc:        questions@FreeBSD.ORG
Subject:   Re: AMD Thunderbird
Message-ID:  <3A2950FE.17232BD1@urx.com>
References:  <20001202192045.47314.qmail@web11006.mail.yahoo.com>

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Luke Eckley wrote:
> 
> I notice that the FreeBSD site talks about the AMD
> K-6, but I could find no information on the Athlon or
> Thunderbird.  Is the Athlon/Thunderbird supported?  If
> so, were can I find some info on them.

There isn't much to look up on them. They show up as

CPU: AMD Athlon(tm) Processor (900.04-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x642  Stepping = 2
 
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
  AMD Features=0xc0440000<<b18>,AMIE,DSP,3DNow!>
real memory  = 268369920 (262080K bytes)

This means you use the "cpu I686_CPU" option in your kernel. The
system it replaced (a P-200) required 277K seconds to do a setiathome
work unit. The Thunderbird only uses 17K seconds. A system update of
4-stable using my upworld shell script required 1840u seconds from
cvsup to installworld. A P-II 400 requires ~4420u seconds.

I don't think the gnu compilers are optimized for the additional
pipelines that the Thunderbird has over the Intel Pentium's. I haven't
had it running long enough to find out what I can do for
optimizations.

Kent

-- 
Kent Stewart
Richland, WA

mailto:kbstew99@hotmail.com
http://kstewart.urx.com/kstewart/index.html
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