From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964840AbWFHO1q (ORCPT ); Thu, 8 Jun 2006 10:27:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964842AbWFHO1q (ORCPT ); Thu, 8 Jun 2006 10:27:46 -0400 Received: from mta9.srv.hcvlny.cv.net ([167.206.4.204]:10018 "EHLO mta9.srv.hcvlny.cv.net") by vger.kernel.org with ESMTP id S964840AbWFHO1q (ORCPT ); Thu, 8 Jun 2006 10:27:46 -0400 Date: Thu, 08 Jun 2006 10:27:46 -0400 From: Shailabh Nagar Subject: Re: Merge of per task delay accounting (was Re: 2.6.18 -mm merge plans) In-reply-to: <20060606154034.10147da7.akpm@osdl.org> To: Andrew Morton Cc: balbir@in.ibm.com, linux-kernel@vger.kernel.org, jlan@engr.sgi.com, peterc@gelato.unsw.edu.au Message-id: <448833E2.6000608@watson.ibm.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en References: <20060604135011.decdc7c9.akpm@osdl.org> <4484D25E.4020805@in.ibm.com> <4486017F.8030308@watson.ibm.com> <20060606154034.10147da7.akpm@osdl.org> User-Agent: Mozilla Thunderbird 1.0.7 (Windows/20050923) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton wrote: >On Tue, 06 Jun 2006 18:28:15 -0400 >Shailabh Nagar wrote: > > > >>So, we have a good consensus from existing/potential users of taskstats and would >>very much appreciate it being included in 2.6.18. >> >> > >Yes, for 2.6.18 I'm inclined to send taskstats and to continue to play >wait-and-see on the statistics infrastructure. Greg is taking a look at >the stats code, which is good. > > > Thanks ! The suggestion from Jay Lan to extend the interface by making sending of tgid stats configurable is quite reasonable and can be done relatively simply: set some parameter, either by sending a separate command (verify sender is privileged) or by some sysfs parameter and use that to control sending of tgid stats on task exit (as well as allocation of any tgid stat related structures). Would you recommend we submit a patch for it now or wait till after delay accounting has gone into 2.6.18 ? Such requests for extending the interface are likely to happen as more users start using the interface. But since any patch will need some testing etc. and we are very close to the 2.6.18 merge window, I wanted your advice on whether this should wait until later. Regards, Shailabh