From owner-freebsd-hackers Sun Feb 14 23:46:26 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA20032 for freebsd-hackers-outgoing; Sun, 14 Feb 1999 23:46:26 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from iquest3.iquest.net (iquest3.iquest.net [209.43.20.203]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id XAA20023 for ; Sun, 14 Feb 1999 23:46:23 -0800 (PST) (envelope-from toor@y.dyson.net) Received: (qmail 18789 invoked from network); 15 Feb 1999 07:46:20 -0000 Received: from dyson.iquest.net (HELO y.dyson.net) (198.70.144.127) by iquest3.iquest.net with SMTP; 15 Feb 1999 07:46:20 -0000 Received: (from root@localhost) by y.dyson.net (8.9.1/8.9.1) id CAA00364; Mon, 15 Feb 1999 02:46:21 -0500 (EST) Message-Id: <199902150746.CAA00364@y.dyson.net> Subject: Re: Processor affinity? In-Reply-To: from Jaye Mathisen at "Feb 14, 99 06:36:20 pm" To: mrcpu@internetcds.com (Jaye Mathisen) Date: Mon, 15 Feb 1999 02:46:21 -0500 (EST) Cc: hackers@FreeBSD.ORG From: "John S. Dyson" Reply-To: dyson@iquest.net X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Jaye Mathisen said: > > For some reason that on the suface does not make sense to me, the perl > script moved back and forth among the CPU's, just about like clockwork, > every update or so of top. > Yes, that is a pseudo-bug in the FreeBSD SMP scheduler. It is fun to see the CPU activity lights on a box that shows it, with CPU utilization bouncing from CPU to CPU!!! Indeed, a few changes should fix that :-). I noticed that on a quad PPro about 2yrs ago!!! -- John | Never try to teach a pig to sing, dyson@iquest.net | it makes one look stupid jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message