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From: lkc@hpirs.HP (Lee Casuto)
Newsgroups: comp.unix.wizards
Subject: Re: inexplicable slowness
Message-ID: <4760004@hpirs.HP>
Date: Tue, 20-Jan-87 16:52:32 EST
Article-I.D.: hpirs.4760004
Posted: Tue Jan 20 16:52:32 1987
Date-Received: Fri, 23-Jan-87 23:36:13 EST
References: <146@dcl-csvax.comp.lancs.ac.uk>
Lines: 9

One possible reason is that your file system(s) are nearly full with
the most recently accessed files being the furthest away form the
heads. If this is the problem, the solution is to back up the file
systems sorted on access (modification) time. Do a mkfs the file system.
Restore the files on the new file system. This has been reported to
increase performance dramatically. 

Lee Casuto
...ucbvax!hpda!lkc