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Date:      Thu, 10 Aug 2006 06:51:44 -0400
From:      Chuck Swiger <cswiger@mac.com>
To:        Ian Smith <smithi@nimnet.asn.au>
Cc:        questions@freebsd.org
Subject:   Re: Top not showing cpu usage even remotely accurately
Message-ID:  <44DB0FC0.1010705@mac.com>
In-Reply-To: <Pine.BSF.3.96.1060810135055.16843A-100000@gaia.nimnet.asn.au>
References:  <Pine.BSF.3.96.1060810135055.16843A-100000@gaia.nimnet.asn.au>

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Ian Smith wrote:
> But since running 5.x (5.5-STABLE since 1st Aug) top can show 0.0% idle
> but the cpu usages shown don't add up to much of a fraction of 100%.
[ ... ]
> Any ideas why top hasn't much of a clue about what's consuming cpu? 

Sure, if you're running a parallel make, that will be starting up lots of 
short-lived compiler processes which exit quickly; top can only display the 
CPU load for those processes which are still running at the time it samples 
the system.

-- 
-Chuck



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