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From: zenith-steven@cs.yale.edu (Steven Ericsson Zenith)
Newsgroups: comp.sys.transputer
Subject: Re: Monitoring CPU Load?
Message-ID: <1990Oct17.174800@cs.yale.edu>
Date: 17 Oct 90 21:48:00 GMT
References: <9801@discus.technion.ac.il> <1990Oct17.110318.9927@specialix.co.uk>
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Reply-To: zenith-steven@cs.yale.edu (Steven Ericsson Zenith)
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In article <1990Oct17.110318.9927@specialix.co.uk>, iann@specialix.co.uk
(Ian Nandhra) writes:
> dario@techunix.BITNET (Dario Ringach) writes:
> >Is there any way to monitor the percent of usage of a
> >Transputer by running an OCCCAM process in PAR-rallel
> >with an application?  Thanks. -Dario
> 
> 
> A monitoring process could be written to examine the process
> queue[s] and to determine how many processes are waiting to run
> (and being prevented from doing so by this monitoring process).
> [...]

Sheesh, that's tougher than it need be. Hossein and I used to just sit
a process on a v.short timer and allow it to maintain a counter.

TIMER t:
WHILE forever
  SEQ
    t ? AFTER zip.nada
    c := c + 1

This process will now effectively provide a count which represents the
idle time on the processor - since it'll keep geting rescheduled if the
processor is idle.

Steven
--
Steven Ericsson Zenith              *            email:
zenith@cs.yale.edu
Fax: (203) 466 2768                 |            voice: (203) 466 2587
   "All see beauty as beauty only because they see ugliness" LaoTzu
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