Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262284AbTEUWaJ (ORCPT ); Wed, 21 May 2003 18:30:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262285AbTEUWaJ (ORCPT ); Wed, 21 May 2003 18:30:09 -0400 Received: from pao-ex01.pao.digeo.com ([12.47.58.20]:64067 "EHLO pao-ex01.pao.digeo.com") by vger.kernel.org with ESMTP id S262284AbTEUWaI (ORCPT ); Wed, 21 May 2003 18:30:08 -0400 Date: Wed, 21 May 2003 15:41:41 -0700 From: Andrew Morton To: linux-kernel@vger.kernel.org Subject: Re: must-fix list, v5 Message-Id: <20030521154141.2ede1e91.akpm@digeo.com> In-Reply-To: <20030521152255.4aa32fba.akpm@digeo.com> References: <20030521152255.4aa32fba.akpm@digeo.com> X-Mailer: Sylpheed version 0.9.0pre1 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 21 May 2003 22:43:10.0732 (UTC) FILETIME=[5B1384C0:01C31FEA] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1099 Lines: 28 Andrew Morton wrote: > > o O(1) scheduler starvation, poor behaviour seems unresolved. > > Jens: "I've been running 2.5.67-mm3 on my workstation for two days, and > it still doesn't feel as good as 2.4. It's not a disaster like some > revisisons ago, but it still has occasional CPU "stalls" where it feels > like a process waits for half a second of so for CPU time. That's is very > noticable." > > Also see Mike Galbraith's work. > > Conclusion: the scheduler has issues, lots of people working on it. Rick > Lindsley, Andrew Theurer. Actually this part should have been deleted. There have been a lot of sporadic CPU scheduler problem reports and a lot of fixes, some in just the past day or two. So apart from David MT's discoveries we shall be wiping the slate clean and awaiting new reports. - 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/