Messages in this thread | | | Date | Wed, 4 Apr 2001 17:15:42 +0200 | From | christophe barbe <> | Subject | Re: uninteruptable sleep (D state => load_avrg++) |
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On mer, 04 avr 2001 17:05:05 Paul Jakma wrote: > imagine a box with a bunch of processes that do almost nothing but > call on the kernel to do IO. If you only count the runnable state > towards load_avg then your load_avg will be very low, even though your > box is swamped - you are ignoring the work of the kernel. > > if you count D towards load_avg then it will reflect this abstract > 'load' concept more accurately. > > Ie, counting D towards load_avg is a way of taking kernel IO work into > account when calculating the load average figures.
ok I'm convinced. And a measure can't be perfect.
Thank you, Christophe
-- Christophe Barbé Software Engineer Lineo High Availability Group 42-46, rue Médéric 92110 Clichy - France phone (33).1.41.40.02.12 fax (33).1.41.40.02.01 www.lineo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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