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Article View: comp.sys.sgi.misc
Article #12

Where does the CPU go, when its not doing nuthin' (gr_osview)

#12
From: Mark Rosenstein
Date: Thu, 17 Dec 1992 06:39
18 lines
1069 bytes
When looking at gr_osview, I have a program that uses about 50% of the
cpu (indigo R4000 elan running 4.05F). The CPU wait line in gr_osview
is empty, so if the cpu isn't waiting, why doesn't my program get 100%
of the CPU?

I guess the less naive way of putting this is: What factors aren't captured
between the CPU Usage and CPU wait?

[The program in question reads in a 16k chunks of stuff off of disk, messes
around with them and writes them out. All to local disk.]

Thanks.

Mark.
=-=-=-=-=-=
He started to sing as he tackled the thing
That couldn't be done, and he did it.
    --- Edgar A. Guest, "Collected Verse"
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Path: arc1-ca.pugleaf.net!sparky!uunet!walter!mbr

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Newsgroups: comp.sys.sgi.misc
Path: arc1-ca.pugleaf.net!sparky!uunet!walter!mbr
From: mbr@bellcore.com (Mark Rosenstein)
Subject: Where does the CPU go, when its not doing nuthin' (gr_osview)
Message-ID: <MBR.92Dec17063936@ponape.bellcore.com>
Sender: news@walter.bellcore.com
Nntp-Posting-Host: ponape.bellcore.com
Reply-To: mbr@bellcore.com (Mark Rosenstein)
Organization: Bellcore, Morristown, NJ
Date: 17 Dec 92 06:39:36
Lines: 18