From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761329AbXGPJST (ORCPT ); Mon, 16 Jul 2007 05:18:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754784AbXGPJSL (ORCPT ); Mon, 16 Jul 2007 05:18:11 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:54426 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756014AbXGPJSK (ORCPT ); Mon, 16 Jul 2007 05:18:10 -0400 Date: Mon, 16 Jul 2007 11:17:37 +0200 From: Ingo Molnar To: Ed Tomlinson Cc: linux-kernel@vger.kernel.org, Linus Torvalds , Andrew Morton , Mike Galbraith , Arjan van de Ven , Thomas Gleixner , Dmitry Adamushko , Srivatsa Vaddagiri Subject: Re: [patch] CFS scheduler, -v19 Message-ID: <20070716091737.GB5964@elte.hu> References: <20070706173319.GA2356@elte.hu> <200707141319.13270.edt@aei.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200707141319.13270.edt@aei.ca> User-Agent: Mutt/1.5.14 (2007-02-12) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.1.7-deb -1.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Ed Tomlinson wrote: > I run a java application at nice 15. Its been a background > application here for as long as SD and CFS have been around. If I > have a compile running at nice 0, with v19 java gets so little cpu > that the the wrapper that runs to monitor it is timing out waiting for > it to start. This is new in v19 - something in v19 is not meshing > well with my mix of applications... how much longer did the startup of the java app get relative to say v18? to debug this, could you check whether this problem goes away if you use nice 10 (or nice 5) instead of nice 15? Ingo