sluggish S81

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Article #419

#419

From: Carl Langford s
Date: Tue, 13 Oct 1992 18:45

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We have a S81 running ptx v1.3. Once in a while, the system becomes quite
sluggish. sar shows that the system disk (zd0) is 100% busy. The disk
contains /, /usr and two swap partitions. sar also shows that there is no
swapping on this system. /tmp is mounted as a separate partition on a 
different disk. We have no user accounts on /usr, and, as far as we can
tell, have no applications using / or /usr except for normal system
activity. Can anyone provide some suggestions on what other things we should
look for? The machine has been set up for timesharing (as opposed to
commercial), has 14 processors and 144 meg of RAM. It typically supports 
100+ users and the slowdown does not seem to be related to user load.
====
Carl Langford                          email: carl@mach1.wlu.ca
Wilfrid Laurier University             phone: 519-884-1973 ext 2270
75 University Ave W                    fax  : 519-886-9351
Waterloo, Ontario, Canada
N2L 3C5

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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!torn!watserv2.uwaterloo.ca!mach1!clangfor
From: clangfor@mach1.wlu.ca (Carl Langford s)
Subject: sluggish S81
Message-ID: <Bw2pG2.IAz@mach1.wlu.ca>
Organization: Wilfrid Laurier University
Date: Tue, 13 Oct 1992 18:45:36 GMT
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