Re: SMP 2.1.131: SCSI performance extremely poor vs. IDE

Chris (cb@v-wave.com)
12 Dec 1998 13:33:10 -0700

>>>>> "Lawrence" == Lawrence Walton <lawrence@otak-k.com> writes:

Lawrence> I wonder about the bonnie benchmarking, but here is a
Lawrence> SCSI benchmark with bonnie and a Symbios 875 and a 18
Lawrence> barracuda, P233 and 128 megs of ram. Linux version

Lawrence> How does this stack up? is it a SMP only thing?

Just as a side note, bonnie benchmarks of a size less than several
times RAM, are just a test of memory bandwidth, since a large portion
gets cached. Try comparing those numbers to a 800 - 1000 meg test...

Heck, I've seen read rates of over 50meg/sec off of some small
tests ;) If you want to see some benchmarks to compare against look
at the bonnie results at

http://www.tec.ualberta.ca/Benchmarks/benchmarks.html

HTH

-- 
Chris Bayly


Email:  cb@v-wave.com                    | UNIX Support                 
Email:  Chris.Bayly@UAlberta.CA          | 352 General Services Building
Phone:  (403) 492-9344                   | University of Alberta        
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Web:    http://www.tec.ualberta.ca/~cb/  | Canada T6G 2S7               


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