From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752183AbZHZICm (ORCPT ); Wed, 26 Aug 2009 04:02:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751522AbZHZICl (ORCPT ); Wed, 26 Aug 2009 04:02:41 -0400 Received: from mail.gmx.net ([213.165.64.20]:34768 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1750984AbZHZICj (ORCPT ); Wed, 26 Aug 2009 04:02:39 -0400 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX1/YZkoFyt3YiityCsWczQoP9ZYAZOtltvPcsg6Hig XUGaqvVH5BRiBK Subject: Re: RFC: THE OFFLINE SCHEDULER From: Mike Galbraith To: raz ben yehuda Cc: Peter Zijlstra , Chris Friesen , Christoph Lameter , riel@redhat.com, mingo@elte.hu, andrew motron , wiseman@macs.biu.ac.il, lkml , linux-rt-users@vger.kernel.org In-Reply-To: <1251282598.3514.20.camel@raz> References: <1250983671.5688.21.camel@raz> <1251004897.7043.70.camel@marge.simson.net> <1251018551.3810.35.camel@raz> <1251012621.14003.71.camel@marge.simson.net> <1251025557.3810.65.camel@raz> <1251021133.14003.172.camel@marge.simson.net> <1251222993.7023.53.camel@marge.simson.net> <1251227322.7538.1172.camel@twins> <4A943A00.9080609@nortel.com> <1251264700.7538.1178.camel@twins> <1251282598.3514.20.camel@raz> Content-Type: text/plain Date: Wed, 26 Aug 2009 10:02:35 +0200 Message-Id: <1251273755.16910.16.camel@marge.simson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.24.1.1 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 X-FuHaFi: 0.62 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2009-08-26 at 13:29 +0300, raz ben yehuda wrote: > OFFSCHED is bad name to my project. My project is called SOS = Service > Oriented System. > SOS, has nothing to do with Real time. ?? The paper you pointed me at maintains it's very much about realtime. This paper argues that OFFSCHED fits to the niche of Multiprocessors real time systems by partitioning a system to two; the operating system and OFFSCHED. OFFSHCED is a hybrid system. It is hybrid because it is both real time and still a regular Linux server. Real time is mainly achieved by the NMI characteristic and the CPU isolation. It is a hybrid system because OFFSCHED scheduler interacts with the operating system. -Mike.