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From: tim@hoptoad.uucp (Tim Maroney)
Newsgroups: comp.sys.mac
Subject: Re: A/UX filesystem performance
Message-ID: <2495@hoptoad.uucp>
Date: Wed, 22-Jul-87 22:58:31 EDT
Article-I.D.: hoptoad.2495
Posted: Wed Jul 22 22:58:31 1987
Date-Received: Sat, 25-Jul-87 03:03:10 EDT
References: <44025@beno.seismo.CSS.GOV> <10252@amdahl.amdahl.com> <443@eplrx7.UUCP> <603@hydra.riacs.edu>
Reply-To: tim@hoptoad.UUCP (Tim Maroney)
Organization: Centram Systems, Berkeley
Lines: 9

A/UX runs on top of the Mac OS.  If the UNIX file system is not "real UNIX"
but merely a front-end to the Mac HFS software, then the single-threaded
nature of HFS could be expecvted to present extreme performance obstacles,
since only one process's file system request can get serviced at once, and
the rest are sleeping.  I don't have an A/UX to play with, but if it runs
Mac disks, then it is almost surely not a real UNIX file system.
-- 
Tim Maroney, {ihnp4,sun,well,ptsfa,lll-crg,frog}!hoptoad!tim (uucp)
hoptoad!tim@lll-crg (arpa)