Date: Fri, 21 Feb 1997 12:16:56 -0800 From: "Jin Guojun[ITG]" <jin@george.lbl.gov> To: freebsd-hardware@freebsd.org, robsch@robkaos.ruhr.de Subject: Re: Performance problem with P6-200 Message-ID: <199702212016.MAA18042@george.lbl.gov>
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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
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