From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757186AbYJVRXj (ORCPT ); Wed, 22 Oct 2008 13:23:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752588AbYJVRXb (ORCPT ); Wed, 22 Oct 2008 13:23:31 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:41918 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752440AbYJVRXa (ORCPT ); Wed, 22 Oct 2008 13:23:30 -0400 Date: Wed, 22 Oct 2008 10:22:57 -0700 From: Andrew Morton To: Jesse Barnes Cc: eranian@gmail.com, "David Miller" , linux-kernel@vger.kernel.org, Linus Torvalds Subject: Re: [patch 00/24] perfmon3: introduction Message-Id: <20081022102257.60dc8d08.akpm@linux-foundation.org> In-Reply-To: <200810220958.23266.jbarnes@virtuousgeek.org> References: <48f8a9a3.0437560a.656a.57c5@mx.google.com> <20081021.212502.41487120.davem@davemloft.net> <7c86c4470810220139h49269138g844194bd5db3d5c2@mail.gmail.com> <200810220958.23266.jbarnes@virtuousgeek.org> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.5; x86_64-redhat-linux-gnu) 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 On Wed, 22 Oct 2008 09:58:22 -0700 Jesse Barnes wrote: > On Wednesday, October 22, 2008 1:39 am stephane eranian wrote: > > As you know, I have been involved with this project for quite some time > > now. I have been through many ups and downs trying to get this merged > > upstream. So rest assured of my full determination to bring this to the > > point of success. > > I've been following this at a high level since using perfmon on ia64 several > years ago. I have to say I'm impressed that you've put up with all the review > and code churn (which to me often seemed arbitrary) without burning out. > > Honestly I think it sucks that perfmonN isn't upstream yet supporting all the > various architectures you've been working with. You've obviously proven to be > a much more responsive and end-user focused maintainer than several of the > other fly by night profiling infrastructures we currently have in the kernel > (the long abandoned oprofile and perfctr come to mind). > > As I mentioned at KS, I think it's about time we had a single point of contact > for profiling in the kernel, to avoid the massive functional duplication we > have today and make sure some kind of code sharing occurs; seems to me you'd > be a good candidate for that sort of job. > > But regardless, I think it's about time this got merged. Linus? Andrew? It is several years late. For me the problem has been that we do a lot of review and have lots of discussion but then the trail goes cold for six months and when it all pops up again the code has changed and/or we've all forgotten about it again. What it needs is a sustained effort to get it over the hump. How's about getting it into linux-next asap and then we all agree to do the re-re-re-review and runtime testing for a 2.6.29 merge?