From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753074AbXCRG0P (ORCPT ); Sun, 18 Mar 2007 02:26:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753021AbXCRG0P (ORCPT ); Sun, 18 Mar 2007 02:26:15 -0400 Received: from mail.gmx.net ([213.165.64.20]:52740 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752844AbXCRG0O (ORCPT ); Sun, 18 Mar 2007 02:26:14 -0400 X-Provags-ID: V01U2FsdGVkX190nzg6M0x0A519Tuesh7IgAyLY11TaSTaIIe2A7a AEcohRo7VilUzW Subject: Re: is RSDL an "unfair" scheduler too? From: Mike Galbraith To: Willy Tarreau Cc: Linus Torvalds , William Lee Irwin III , Avi Kivity , Ingo Molnar , Con Kolivas , ck@vds.kolivas.org, Serge Belyshev , Al Boldi , linux-kernel@vger.kernel.org, Nicholas Miell , Andrew Morton In-Reply-To: <20070318052439.GT943@1wt.eu> References: <200703042335.26785.a1426z@gawab.com> <20070317074506.GA13685@elte.hu> <87fy84i7nn.fsf@depni.sinp.msu.ru> <200703172048.46267.kernel@kolivas.org> <20070317114903.GA20673@elte.hu> <45FC525D.5000708@argo.co.il> <20070318012533.GB2986@holomorphy.com> <20070318052439.GT943@1wt.eu> Content-Type: text/plain Date: Sun, 18 Mar 2007 07:26:11 +0100 Message-Id: <1174199171.8543.1.camel@Homer.simpson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.8.2 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2007-03-18 at 06:24 +0100, Willy Tarreau wrote: > Maybe we're all discussing the problem because we have reached the point > where we need two types of schedulers : one for the desktop and one for > the servers. After all, this is already what is proposed with preempt, > it would make sense provided they share the same core and avoid ifdefs > or unused structure members. Maybe adding OPTIONAL unfairness to RSDL > would help some scenarios, but in any case it is important to retain > the default fairness it provides. Bingo.