Date: Mon, 27 Sep 2004 15:13:38 EDT From: TM4525@aol.com To: jerrymc@clunix.cl.msu.edu Cc: freebsd-questions@freebsd.org Subject: Re: Device polling performance Message-ID: <1ec.2a8cb768.2e89c062@aol.com>
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In a message dated 9/27/04 3:04:22 PM Eastern Daylight Time, jerrymc@clunix.cl.msu.edu writes: > Mike at sentex.net previously wrote: > > "Given a decent CPU, you wont see very much of a load average at all in the > 200Kpps / 100Mb range." Note that load average and CPU usage are two intirely different things. You could have a huge amount of CPU usage with a load average hovering around zero and somewhat vice versa too - eg high load average without a great deal of CPU usage - though that would be less common. ////jerry Since device polling is entirely a kernel process (and userland "load average" has nothing to do with it), his statement would have been completely irrelevent if he were, in fact, talking about userland load average. Load average is virtually useless and shouldn't be part of any conversation originating after 1990.
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