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Date:	Wed, 21 Apr 2004 09:21:56 PDT7
From:	"Steven Levine" <steve53@earthlink.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: cpu load monitor ?

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In <408661E5.727D@peterskye.com>, on 04/21/04
at 04:58 AM, Peter Skye said:

> TOP is NOT a load monitor - the statistics displayed are
> not real time, they are the statistics for the previous
> monitoring period (default 2 seconds).

> The load is calculated by comparing the amount of CPU
> that a process has used in the current monitoring period,
> to the amount the same process used in the last monitoring
> period.

Obviously, I have read this. The wording is a bit ambiguous. Note the
use of the word load in both paragraphs. I read to this mean that TOP is
not an absolute load monitor rather that it reports relative CPU
utilization which is why the percentages always add up to 100%.

FWIW, the data returned by the DosQProcStatus call that Paul uses could
but used to report per process CPU load, with some caveats. See

<http://hobbes.nmsu.edu/pub/os2/dev/info/proc.zip>

Also, recent kernels have corrected some defects in DosQProcStatus. I
forget the details, but they are in the testcase kernel readmes.

TOP does report CPU loading indirectly in the Total CPU column but it
would take post processing of something like the PLIST output to develop
numeric load values.

HTH,

Steven

--
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"Steven Levine" MR2/ICE 2.41 #10183 Warp4/FP15/14.093c_W4
www.scoug.com irc.webbnet.info irc.fyrelizard.org #scoug (Wed 7pm PST)
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