Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261917AbTIJKnj (ORCPT ); Wed, 10 Sep 2003 06:43:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261921AbTIJKnj (ORCPT ); Wed, 10 Sep 2003 06:43:39 -0400 Received: from imap.gmx.net ([213.165.64.20]:51659 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S261917AbTIJKnh (ORCPT ); Wed, 10 Sep 2003 06:43:37 -0400 Message-Id: <6.0.0.22.0.20030910124128.01c40cc0@pop.gmx.net> X-Mailer: QUALCOMM Windows Eudora Version 6.0.0.22 Date: Wed, 10 Sep 2003 12:47:39 +0200 To: Nick Piggin From: Mike Galbraith Subject: Re: Priority Inversion in Scheduling Cc: Mike Fedyk , John Yau , linux-kernel@vger.kernel.org In-Reply-To: <3F5EEEDA.7070406@cyberone.com.au> References: <3F5E6F15.6040507@cyberone.com.au> <6.0.0.22.0.20030910062610.01cfacd8@pop.gmx.net> <20030910053549.GE28279@matchmail.com> <6.0.0.22.0.20030910074121.01c8a220@pop.gmx.net> <3F5EEEDA.7070406@cyberone.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 765 Lines: 19 At 11:28 AM 9/10/2003, Nick Piggin wrote: >Sounds interesting. I my scheduler doesn't have any inversion or >starvation issues that I know of without backboost though. I'd like to >know if you find any. I haven't been able to stimulate inversion, or found any terminal starvation with your mods. The only things I can see is array switch latency making X choppy under load, and the cpu distribution differences shown by contest (and both may have changed considerably since last version tested). -Mike - 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/