Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262318AbTFBNXu (ORCPT ); Mon, 2 Jun 2003 09:23:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262319AbTFBNXu (ORCPT ); Mon, 2 Jun 2003 09:23:50 -0400 Received: from flamingo.mail.pas.earthlink.net ([207.217.120.232]:7585 "EHLO flamingo.mail.pas.earthlink.net") by vger.kernel.org with ESMTP id S262318AbTFBNXs (ORCPT ); Mon, 2 Jun 2003 09:23:48 -0400 Subject: Re: Strange load issues with 2.5.69/70 in both -mm and -bk trees. From: Tom Sightler To: Ingo Molnar Cc: Andrew Morton , LKML In-Reply-To: References: Content-Type: text/plain Organization: Message-Id: <1054560974.1918.2.camel@iso-8590-lx.zeusinc.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 02 Jun 2003 09:36:15 -0400 Content-Transfer-Encoding: 7bit X-MailScanner: Found to be clean X-MailScanner-SpamCheck: not spam, SpamAssassin (score=-3.4, required 10, AWL, EMAIL_ATTRIBUTION, IN_REP_TO, REFERENCES, SPAM_PHRASE_00_01) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1531 Lines: 37 On Mon, 2003-06-02 at 03:36, Ingo Molnar wrote: > On Sat, 31 May 2003, Andrew Morton wrote: > > > > [...] Upon looking a little further it > > > seemed that the kernel was dynamically boosting the priority of the > > > process much higher than it probably should be, in the end, not leaving > > > enough CPU for playing the sounds without skipping. > > > > Yes, it seems that too many real-world applications are accidentally > > triggering this problem. > > no, the problem is exactly the opposite. Here's the key observation: > > > the problem seemed to be caused by the fact that the pluginserver (wine) > > was using 100% of the CPU. I simply reniced this process to -10 and > > everything started working fine. > > the kernel has detected this process to be a CPU-hog - and indeed the > traces and the above description all say that it really is a CPU hog. > > by renicing it to -10 it gets super-attention from the scheduler, so it > can be a CPU hog _and_ create sound. Sorry, this is my fault, I'm actually renicing the process to '10' not '-10' that's a typo. I tested this again this morning to make sure. I'm renicing this as a regular user, I don't think that a regular user is allowed to renice to a negative value. Later, Tom - 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/