From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964923AbWFHRml (ORCPT ); Thu, 8 Jun 2006 13:42:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964924AbWFHRml (ORCPT ); Thu, 8 Jun 2006 13:42:41 -0400 Received: from smtp.osdl.org ([65.172.181.4]:36488 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S964923AbWFHRml (ORCPT ); Thu, 8 Jun 2006 13:42:41 -0400 Date: Thu, 8 Jun 2006 10:42:24 -0700 From: Andrew Morton To: Shailabh Nagar Cc: balbir@in.ibm.com, linux-kernel@vger.kernel.org, jlan@engr.sgi.com, peterc@gelato.unsw.edu.au Subject: Re: Merge of per task delay accounting (was Re: 2.6.18 -mm merge plans) Message-Id: <20060608104224.b2fe8c60.akpm@osdl.org> In-Reply-To: <448833E2.6000608@watson.ibm.com> References: <20060604135011.decdc7c9.akpm@osdl.org> <4484D25E.4020805@in.ibm.com> <4486017F.8030308@watson.ibm.com> <20060606154034.10147da7.akpm@osdl.org> <448833E2.6000608@watson.ibm.com> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.17; i686-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 On Thu, 08 Jun 2006 10:27:46 -0400 Shailabh Nagar wrote: > 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). hm. Is it possible to check the privileges of a netlink message sender? > Would you recommend we submit a patch for it now or wait till after > delay accounting has gone into > 2.6.18 ? Earlier, please. > 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. If it's merged, we'll have a couple more months to test it, and to fix any little problems.