Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750838AbWHaKVK (ORCPT ); Thu, 31 Aug 2006 06:21:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751009AbWHaKVK (ORCPT ); Thu, 31 Aug 2006 06:21:10 -0400 Received: from sperry-01.control.lth.se ([130.235.83.188]:60632 "EHLO sperry-01.control.lth.se") by vger.kernel.org with ESMTP id S1750838AbWHaKVJ (ORCPT ); Thu, 31 Aug 2006 06:21:09 -0400 Message-ID: <44F6B80D.2020409@control.lth.se> Date: Thu, 31 Aug 2006 12:21:01 +0200 From: Martin Ohlin User-Agent: Thunderbird 1.5.0.4 (X11/20060516) MIME-Version: 1.0 To: balbir@in.ibm.com CC: linux-kernel@vger.kernel.org Subject: Re: A nice CPU resource controller References: <44F5AB45.8030109@control.lth.se> <661de9470608300841o757a8704te4402a7015b230c5@mail.gmail.com> In-Reply-To: <661de9470608300841o757a8704te4402a7015b230c5@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 751 Lines: 18 Balbir Singh wrote: > The CKRM e-series is a PID based CPU Controller. It did a good job of > controlling and smoothing out the load (and variations) and even > worked with groups. But it achieved all this through some amount of > complexity. I have now downloaded and looked at the code you refer to. But as far as I can see, the PID controller is only used for load balancing between CPUs, not for controlling the bandwidth/time of individual tasks. Is this correct or did I miss something? /Martin - 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/