Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932097AbWAJNz1 (ORCPT ); Tue, 10 Jan 2006 08:55:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932114AbWAJNz1 (ORCPT ); Tue, 10 Jan 2006 08:55:27 -0500 Received: from 213-140-2-70.ip.fastwebnet.it ([213.140.2.70]:13287 "EHLO aa003msg.fastwebnet.it") by vger.kernel.org with ESMTP id S932097AbWAJNz0 (ORCPT ); Tue, 10 Jan 2006 08:55:26 -0500 Date: Tue, 10 Jan 2006 14:53:21 +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: <20060110145321.00aa7040@localhost> In-Reply-To: <5.2.1.1.2.20060110135846.00bfd0a8@pop.gmx.net> References: <5.2.1.1.2.20060110125942.00bef510@pop.gmx.net> <20060109210035.3f6adafc@localhost> <5.2.1.1.2.20060109162113.00ba9fd0@pop.gmx.net> <5.2.1.1.2.20060102092903.00bde090@pop.gmx.net> <20060101123902.27a10798@localhost> <5.2.1.1.2.20051231162352.00bda610@pop.gmx.net> <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> <5.2.1.1.2.20060109162113.00ba9fd0@pop.gmx.net> <5.2.1.1.2.20060110125942.00bef510@pop.gmx.net> <5.2.1.1.2.20060110135846.00bfd0a8@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: 3170 Lines: 76 On Tue, 10 Jan 2006 14:01:36 +0100 Mike Galbraith wrote: > > > Can you please try this version? It tries harder to correct any > > > >It seems that you have forgotten the to attach the patch... > > Drat. At least I'm not the first to ever do so :) This version basically works like the the previous, except that it makes the priority adjustment faster (that is fine). However I can fool it the same way. "./a.out 7000" PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5459 paolo 22 0 2392 288 228 S 71.3 0.1 0:09.47 a.out "./a.out 3000" PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5493 paolo 19 0 2396 292 228 R 49.8 0.1 0:14.42 a.out "./a.out 1500" PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5495 paolo 18 0 2396 288 228 S 33.4 0.1 0:09.60 a.out Fooling it: "./a.out 7000 & ./a.out 6537 & ./a.out 6347 & ./a.out 5873 &" PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5502 paolo 19 0 2392 288 228 R 27.0 0.1 0:05.64 a.out 5503 paolo 19 0 2396 288 228 R 26.0 0.1 0:07.50 a.out 5505 paolo 19 0 2396 292 228 R 25.6 0.1 0:07.24 a.out 5504 paolo 18 0 2392 288 228 R 21.0 0.1 0:06.78 a.out (priorities fluctuate between 18/19) Again with more of them: ./a.out 7000 & ./a.out 6537 & ./a.out 6347 & ./a.out 5873& ./a.out 6245 & ./a.out 5467 & PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5525 paolo 18 0 2396 288 228 R 26.4 0.1 0:07.48 a.out 5521 paolo 19 0 2396 288 228 R 22.0 0.1 0:09.00 a.out 5524 paolo 19 0 2392 288 228 R 19.6 0.1 0:07.21 a.out 5523 paolo 19 0 2392 288 228 R 13.0 0.1 0:10.60 a.out 5520 paolo 19 0 2392 288 228 R 11.0 0.1 0:08.46 a.out 5522 paolo 19 0 2396 288 228 R 7.8 0.1 0:07.14 a.out PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5528 paolo 18 0 2392 288 228 R 19.7 0.1 0:18.15 a.out 5533 paolo 15 0 2396 288 228 S 19.3 0.1 0:19.12 a.out 5531 paolo 18 0 2396 288 228 R 18.5 0.1 0:19.23 a.out 5532 paolo 17 0 2392 288 228 R 15.1 0.1 0:18.55 a.out 5529 paolo 18 0 2396 288 228 R 14.7 0.1 0:13.05 a.out 5530 paolo 18 0 2392 288 228 R 12.5 0.1 0:20.42 a.out PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5530 paolo 18 0 2392 288 228 R 21.0 0.1 0:25.42 a.out 5533 paolo 18 0 2396 288 228 R 20.2 0.1 0:24.75 a.out 5529 paolo 18 0 2396 288 228 R 16.2 0.1 0:17.68 a.out 5532 paolo 18 0 2392 288 228 R 14.8 0.1 0:23.33 a.out 5531 paolo 18 0 2396 288 228 R 14.4 0.1 0:23.96 a.out 5528 paolo 18 0 2392 288 228 R 13.6 0.1 0:23.03 a.out -- Paolo Ornati Linux 2.6.15-sched_trottle2 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/