Re: Benchmarking and the 68020 Cache

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#72

From: jrp
Date: Wed, 05 Mar 1986 09:41

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Dear David,

I found  your note  on  the 68020  cache most  interesting.   Similar
experiments on other  machines have given  a much smaller  difference
between 'identical' encodings  of Whetstone.  Hence  I conclude:  The
68020 cache is 'unstable' and  hence all measurements of  performance
on that machine are susceptable to at least a 20% uncertainity.  I do
not see how ordinary high level  language code can avoid the  problem
of the cache that you have located - just increasing the size of  the
benchmark is unlikely to help.

  yours, Brian Wichmann

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From: jrp@SUNA.PSG.NPL.CO.UK
Newsgroups: mod.computers.workstations
Subject: Re: Benchmarking and the 68020 Cache
Message-ID: <1000.510399685@suna>
Date: Wed, 5-Mar-86 04:41:25 EST
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Posted: Wed Mar  5 04:41:25 1986
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