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From: fouts@bozeman.ingr.com (Martin Fouts)
Newsgroups: comp.unix.cray
Subject: Re: Protection in Cray
Message-ID: <41@garth.UUCP>
Date: 4 Jan 91 17:58:03 GMT
References: <1990Dec18.214228.25858@agate.berkeley.edu> <1249@sunc.osc.edu> <1990Dec19.181343.10365@agate.berkeley.edu> <47572@apple.Apple.COM>
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In-reply-to: fair@Apple.COM's message of 23 Dec 90 09:47:59 GMT

>>>>> On 23 Dec 90 09:47:59 GMT, fair@Apple.COM (Erik E. Fair) said:

Erik> Mike O'dell gave a wonderful paper at the last USENIX conference about
Erik> trying to build a 150 MIPS SPARC system in GAs technology. One of the
Erik> more amusing parts was his description of why heavily pipelined
Erik> machines and virtual memory systems don't get along very well: it is
Erik> somewhat disconcerting to find out that you had a page fault four
Erik> instructions ago...

Not sure how this applies to comp.unix.cray, as Mr. Cray's
machines don't have virtual memory.  It was a much more
interesting problem on the ETA-10, which did. (does?)

Marty
--
Martin Fouts
Software Craftsman

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