Re: slow disks

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#411

From: ram-ashwin
Date: Tue, 24 Mar 1987 20:21

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>   Why would a diskless node run faster than disked node when both are using
>   the same disk?

I suspect it's because in the former case you get twice the memory, since the
memory of the disked node effectively acts like a cache for paging off its
disk.  Since you're running a very large job, the paging overhead on a disked
node will kill you if you're also executing your job on the same node.

-- Ashwin Ram.

ARPA:    Ram-Ashwin@yale
UUCP:    {decvax,linus,seismo}!yale!Ram-Ashwin
BITNET:  Ram@yalecs

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From: ram-ashwin@YALE.ARPA.UUCP
Newsgroups: mod.computers.apollo
Subject: Re: slow disks
Message-ID: <8703242021.AA05671@yale-eli.YALE.ARPA>
Date: Tue, 24-Mar-87 15:21:42 EST
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Posted: Tue Mar 24 15:21:42 1987
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