From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751428AbWEIHmX (ORCPT ); Tue, 9 May 2006 03:42:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751442AbWEIHmX (ORCPT ); Tue, 9 May 2006 03:42:23 -0400 Received: from smtp107.mail.mud.yahoo.com ([209.191.85.217]:55711 "HELO smtp107.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S1751428AbWEIHmW (ORCPT ); Tue, 9 May 2006 03:42:22 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=dPVo8DwZOURvtVkUOdwrayM+Oz7fI5PSOm9j9AsbS2I2Iz9Z++tsu79nkj9I5fErrtNv1V3YX5ECykdBznL29kuUc38lqTVQsvAMy2w6ic4rlITPKEfVpj5AvUPvTu4xRjroTFTrUKganQG50MAQ4SeVoFfTJPiL9OH9X3kMCoU= ; Message-ID: <44602F32.1060909@yahoo.com.au> Date: Tue, 09 May 2006 15:57:06 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050831 Debian/1.7.8-1sarge2 X-Accept-Language: en MIME-Version: 1.0 To: balbir@in.ibm.com CC: Andrew Morton , linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net, jlan@engr.sgi.com Subject: Re: [Patch 2/8] Sync block I/O and swapin delay collection References: <20060502061408.GM13962@in.ibm.com> <20060508141952.2d4b9069.akpm@osdl.org> <20060509035320.GC784@in.ibm.com> <44601933.2040905@yahoo.com.au> <20060509054556.GG784@in.ibm.com> In-Reply-To: <20060509054556.GG784@in.ibm.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Balbir Singh wrote: > >I expect/hope that the CONFIG will be turned on. There is a boot >option (called delayacct) to enable/disable the statistics collection. >Once turned on and enabled, all tasks will be filling in/using the statistics. > Well they'll be _collecting_ the stats, yes. Will they really be using them for anything? If you make the whole thing much lighter weight for tasks which aren't using the accounting, you have a better chance of people turning the CONFIG option on. -- Send instant messages to your online friends http://au.messenger.yahoo.com