Date: Mon, 22 Aug 2005 16:21:02 +0200 From: Mario Hoerich <spambox@MHoerich.de> To: "pobox@verysmall.org" <pobox@verysmall.org> Cc: freebsd-questions@freebsd.org Subject: Re: top -I and load average from 4.9 into 5.4 Message-ID: <20050822142101.GB74593@Pandora.MHoerich.de> In-Reply-To: <4309C9F7.3070904@verysmall.org> References: <4309C9F7.3070904@verysmall.org>
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# pobox@verysmall.org: > We upgraded from 4.9 to 5.4 and the 'top -I' and load average seem to > behave slightly different. 'top -I' in 5.4 stays empty most of the time > with processes flashing in and out from time to time. Well, I'd actually expect them to, as -I filters out any idle process. Justed tested on my 6.0B2, major CPU hogs are shown as expected. > In 4.9 the processes stayed there until they are done. Where's the difference to top [-i], then? I don't really know enough about how load and utilization are calculated. I'd guess load is calculated by the scheduler, based on the number of processes whining for more/larger time slices, whereas utilization is guessimated elsewhere, probably something like process CPU time / available CPU time. I'm none too sure there's an actual correlation between these values, let alone load 1 = utilization 100%. Cheers. Mario
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