From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: From: presotto@plan9.bell-labs.com To: 9fans@cse.psu.edu Subject: Re: [9fans] priority bug MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="upas-mnihsxskownjkkjlosexlpuhqn" Date: Thu, 28 Feb 2002 12:59:47 -0500 Topicbox-Message-UUID: 5c4815a0-eaca-11e9-9e20-41e7f4b1d025 This is a multi-part message in MIME format. --upas-mnihsxskownjkkjlosexlpuhqn Content-Disposition: inline Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit It worked but was a bit too major to stick in the normal release. It knew about oversubscribing and would relegate anything that didn't have the focus to best effort. It had the advantage of being able to have many things going and the one you were most interested in to have all the resource it wanted. It scheduled not only cpu but other resources as well. At one point I started sticking it into the main line but the related changes were a little too pervasive for me so I backed out. Now we have a real time scheduler that pb(peter bosch) did to handle mpeg streams and other goo. I haven't used it but it is in our main stream so it'll at least see the light of day someday. --upas-mnihsxskownjkkjlosexlpuhqn Content-Type: message/rfc822 Content-Disposition: inline Received: from plan9.cs.bell-labs.com ([135.104.9.2]) by plan9; Thu Feb 28 12:10:18 EST 2002 Received: from mail.cse.psu.edu ([130.203.4.6]) by plan9; Thu Feb 28 12:10:17 EST 2002 Received: from psuvax1.cse.psu.edu (psuvax1.cse.psu.edu [130.203.30.6]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id 752FA199B7; Thu, 28 Feb 2002 12:10:10 -0500 (EST) Delivered-To: 9fans@cse.psu.edu Received: from galapagos.cse.psu.edu (galapagos.cse.psu.edu [130.203.12.17]) by mail.cse.psu.edu (CSE Mail Server) with SMTP id 662AD19A17 for <9fans@cse.psu.edu>; Thu, 28 Feb 2002 12:09:10 -0500 (EST) Received: (qmail 2888 invoked by uid 991); 28 Feb 2002 17:07:57 -0000 Message-ID: <20020228170757.2886.qmail@g.bio.cse.psu.edu> To: 9fans@cse.psu.edu Subject: Re: [9fans] priority bug In-Reply-To: Message from presotto@plan9.bell-labs.com of "Thu, 28 Feb 2002 11:12:17 EST." <1effb825dbe9487afe6eff8834c89c96@plan9.bell-labs.com> From: Scott Schwartz Sender: 9fans-admin@cse.psu.edu Errors-To: 9fans-admin@cse.psu.edu X-BeenThere: 9fans@cse.psu.edu X-Mailman-Version: 2.0.8 Precedence: bulk Reply-To: 9fans@cse.psu.edu List-Help: List-Id: Fans of the OS Plan 9 from Bell Labs <9fans.cse.psu.edu> List-Archive: Date: Thu, 28 Feb 2002 12:07:57 -0500 A while back Eran Gabber had a usenix paper on an improved scheduler. Did that work out well enough? --upas-mnihsxskownjkkjlosexlpuhqn--