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From: les@chinet.chi.il.us (Leslie Mikesell)
Newsgroups: comp.unix.sysv386
Subject: Re: SYSTEM ACTIVITY REPORT suggests performance degradation
Message-ID: <1991Mar20.195709.29931@chinet.chi.il.us>
Date: 20 Mar 91 19:57:09 GMT
References: <1319@unet.UUCP>
Organization: Chinet - Chicago Public Access UNIX
Lines: 18

In article <1319@unet.UUCP> jukoff@imram.net.com (Steve Jukoff) writes:

>'sar -u' reports:
>%idle drops to 0% and %wio increases to near 100%.

Do you have anyone running VP/ix?  It seems to be normal for it to
consume all of the system idle time even when DOS is just waiting
for a command (polling the keyboard, I suppose).

>Does anyone know what causes this condition and what can be done
>to stop it?

Try a "ps -ef" and look for processes that have used a lot of time.
You may have a program with a bug like missing EOF and continuing
to make read() system calls forever.

Les Mikesell
  les@chinet.chi.il.us