From owner-freebsd-hardware  Fri Feb 21 12:21:16 1997
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Date: Fri, 21 Feb 1997 12:16:56 -0800
From: "Jin Guojun[ITG]" <jin@george.lbl.gov>
Message-Id: <199702212016.MAA18042@george.lbl.gov>
To: freebsd-hardware@freebsd.org, robsch@robkaos.ruhr.de
Subject: Re: Performance problem with P6-200
Sender: owner-hardware@freebsd.org
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> The following may be somewhat off topic, but I have some problems with my new
> P6NP5 motherboard from ASUS and a PPro-200 (256k). 
> When I run the C-linpack or other floating point stuff I can't get
> more than 14 MFLOPS (with double precision). With single precision
> I get 69 MFLOPS which is fine. Is it notmal that the P6 has such a lousy
> double precision performance?
> What can the reason be?
> The system has 64 MB EDO-RAM. And yes, all caches are enabled.
> The C-linpack is compiled with cc from -current (version 2.7.2.1).
> pgcc doesn't help.
> The C-linpack doesn't use any special library routine except the floor
> function.
> 
> It would be nice if someone with a P6-200 could send me some results
> of FP benchmarks.
> 
> BTW, Dhrystone 2.1 delivers 432000 dhrystones/second. Is this ok?

The FLOPS/DFLOPS ratio I got is:

	32/28	for Pentium		(Triton)
	85/35	for Pentium Pro		(440FX same as yours)

69/14 is little strange.

-Jin