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From: info-vax@ucbvax.ARPA
Newsgroups: fa.info-vax
Subject: VMS 4.0 is SLOW!
Message-ID: <7138@ucbvax.ARPA>
Date: Thu, 16-May-85 14:46:06 EDT
Article-I.D.: ucbvax.7138
Posted: Thu May 16 14:46:06 1985
Date-Received: Fri, 17-May-85 01:38:55 EDT
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Organization: University of California at Berkeley
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From: msev%phobos@cit-hamlet.arpa

>We've recently installed VMS 4.0 and find that some of our signal processing
>programs run 50%, or more, slower than they did, in terms of CPU time. There's
>no I/O; it's straight convolution.

Well, you might check to see if your floating point accelerator is 
turned on.  We once were worried about a factor of 2 slowness on a 750, 
and it turned out we hadn't even *ordered* an FPA.

	-Martin Ewing
USPS:	Radio Astronomy, Caltech MS 105-24, Pasadena, CA 91125
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