Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965028AbVLaRYi (ORCPT ); Sat, 31 Dec 2005 12:24:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965031AbVLaRYh (ORCPT ); Sat, 31 Dec 2005 12:24:37 -0500 Received: from 213-140-2-73.ip.fastwebnet.it ([213.140.2.73]:14565 "EHLO aa006msg.fastwebnet.it") by vger.kernel.org with ESMTP id S965028AbVLaRYh (ORCPT ); Sat, 31 Dec 2005 12:24:37 -0500 Date: Sat, 31 Dec 2005 18:24:40 +0100 From: Paolo Ornati To: Mike Galbraith Cc: Linux Kernel Mailing List , Con Kolivas , Ingo Molnar , Nick Piggin , Peter Williams Subject: Re: [SCHED] wrong priority calc - SIMPLE test case Message-ID: <20051231182440.56863dd3@localhost> In-Reply-To: <5.2.1.1.2.20051231162352.00bda610@pop.gmx.net> References: <5.2.1.1.2.20051231090255.00bede00@pop.gmx.net> <200512281027.00252.kernel@kolivas.org> <20051227190918.65c2abac@localhost> <20051227224846.6edcff88@localhost> <200512281027.00252.kernel@kolivas.org> <5.2.1.1.2.20051231090255.00bede00@pop.gmx.net> <5.2.1.1.2.20051231162352.00bda610@pop.gmx.net> X-Mailer: Sylpheed-Claws 2.0.0-rc1 (GTK+ 2.6.10; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1054 Lines: 25 On Sat, 31 Dec 2005 17:37:11 +0100 Mike Galbraith wrote: > >"./a.out 200 & ./a.out 333" > > > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > > 5607 paolo 15 0 2396 320 252 R 56.1 0.1 0:06.79 a.out > > 5606 paolo 15 0 2396 324 252 R 38.7 0.1 0:04.55 a.out > > 1 root 16 0 2556 552 468 S 0.0 0.1 0:00.28 init > > Strange. Using the exact same arguments, I do see some odd bouncing up to > high priorities, but they spend the vast majority of their time down at 25. You shouldn't use "the same exact numbers", you should try different args and see if you can reproduce the problem. Or maybe preemption make some difference... I'll try with PREEMPT enabled and see. -- Paolo Ornati Linux 2.6.15-rc7-plugsched on x86_64 - 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/