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Path: utzoo!watmath!clyde!cbatt!ucbvax!HI-MULTICS.ARPA!Erstad
From: Erstad@HI-MULTICS.ARPA.UUCP
Newsgroups: mod.computers.apollo
Subject: Re: tape I/O hogging nodes
Message-ID: <870122182509.989950@HI-MULTICS.ARPA>
Date: Thu, 22-Jan-87 13:25:00 EST
Article-I.D.: HI-MULTI.870122182509.989950
Posted: Thu Jan 22 13:25:00 1987
Date-Received: Sat, 24-Jan-87 06:35:35 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
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Approved: apollo@yale-comix.arpa


The key to remember is that priority only affects cpu utilization.  If,
in the fractional second you pause for thought, your entire memory is
swapped out for some other task (tape, background process, whatever)
then even processing a keystroke may well take a couple of disk reads
causing extremely 'jerky' behaviour.