From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762939AbYDVKtm (ORCPT ); Tue, 22 Apr 2008 06:49:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755755AbYDVKte (ORCPT ); Tue, 22 Apr 2008 06:49:34 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:47997 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754709AbYDVKtd (ORCPT ); Tue, 22 Apr 2008 06:49:33 -0400 Date: Tue, 22 Apr 2008 03:49:35 -0700 (PDT) Message-Id: <20080422.034935.134139117.davem@davemloft.net> To: kjwinchester@gmail.com Cc: mingo@elte.hu, elendil@planet.nl, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, a.p.zijlstra@chello.nl, efault@gmx.de, richie@coderworld.net, rjw@sisk.pl Subject: Re: [git pull] scheduler changes for v2.6.26 From: David Miller In-Reply-To: <480DB2DB.9040908@gmail.com> References: <200804211831.29976.elendil@planet.nl> <20080421194359.GD8770@elte.hu> <480DB2DB.9040908@gmail.com> X-Mailer: Mew version 5.2 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kevin Winchester Date: Tue, 22 Apr 2008 06:41:47 -0300 > kevin@alekhine:~/linux$ ./watch-rq-clock.sh > 89.986517 > 81.033471 > 76.942776 > 90.986318 > 75.988551 > 85.987089 > 74.988696 > 85.987078 > 73.988858 > 88.986641 > 68.989600 The results on my 128-cpu Niagara2 box are even more interesting: davem@maramba:~$ /bin/bash ./watch-rq-clock.sh 0 0 0 0 0 0 0 0 0 0 0 0 0 ... I guess this script doesn't work correctly when the cpu whose clock value it greps out of /proc/sched_debug is in NOHZ mode?