Date: Mon, 27 Sep 2004 15:03:32 -0400 (EDT) From: Jerry McAllister <jerrymc@clunix.cl.msu.edu> To: TM4525@aol.com Cc: mike@sentex.net Subject: Re: Device polling performance Message-ID: <200409271903.i8RJ3Yp06317@clunix.cl.msu.edu> In-Reply-To: <1c1.1edea0e4.2e89b8f6@aol.com> from "TM4525@aol.com" at Sep 27, 2004 02:41:58 PM
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> > In a message dated 9/25/04 4:12:52 PM Eastern Daylight Time, mike@sentex.net > writes: > >FreeBSD team for developing a stack that uses no resources. > > .... For the record, what I was saying was that a decent machine (e.g. 2.4 > PIV) should be able to push 200,000 packets per second with decent NICs > (em, or fxp) and with a median packet size (see www.caida.org) of about 540 > bytes, that works out to ~ 100Mb/s. > No you didn't, you said that 200Kpps would show almost no cpu usage, which > is utterly ridiculous. > > 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
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