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From: Lawson.English@p88.f15.n300.z1.fidonet.org (Lawson English)
Newsgroups: comp.sys.mac.programmer
Subject: Settings of cache-memory vs system performance
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Date: 11 Mar 91 18:09:23 GMT
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Anders Ulfheden writes in a message to All

AU>  When playing around with Speedometer for measuring system performance 
AU> I have noticed that turning the cache memory ON, reduces the 
AU> speed in some cases with a factor 2!

Just a guess, assuming that ON and OFF aren't mixed up: perhaps there is an
overhead to "load the cache" that is noticable when a long *sequence* of instructions
is executing instead of a (short) loop. Which CPU are you running?


Lawson
 

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