Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751827AbWIPVXw (ORCPT ); Sat, 16 Sep 2006 17:23:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751811AbWIPVXw (ORCPT ); Sat, 16 Sep 2006 17:23:52 -0400 Received: from opersys.com ([64.40.108.71]:11015 "EHLO www.opersys.com") by vger.kernel.org with ESMTP id S1751813AbWIPVXv (ORCPT ); Sat, 16 Sep 2006 17:23:51 -0400 Message-ID: <450C7039.20208@opersys.com> Date: Sat, 16 Sep 2006 17:44:25 -0400 From: Karim Yaghmour Reply-To: karim@opersys.com Organization: Opersys inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.6) Gecko/20060804 Fedora/1.0.4-0.5.1.fc5 SeaMonkey/1.0.4 MIME-Version: 1.0 To: Ingo Molnar CC: Mathieu Desnoyers , Jes Sorensen , Roman Zippel , Andrew Morton , tglx@linutronix.de, Paul Mundt , linux-kernel@vger.kernel.org, Christoph Hellwig , Ingo Molnar , Greg Kroah-Hartman , Tom Zanussi , ltt-dev@shafik.org, Michel Dagenais , fche@redhat.com Subject: Re: [patch] kprobes: optimize branch placement References: <20060915200559.GB30459@elte.hu> <20060915202233.GA23318@Krystal> <450BCAF1.2030205@sgi.com> <20060916172419.GA15427@Krystal> <20060916173552.GA7362@elte.hu> <20060916175606.GA2837@Krystal> <20060916191043.GA22558@elte.hu> <20060916193745.GA29022@elte.hu> <20060916202939.GA4520@elte.hu> <20060916204342.GA5208@elte.hu> In-Reply-To: <20060916204342.GA5208@elte.hu> 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 Content-Length: 1308 Lines: 34 Ingo Molnar wrote: > the 3 speedups i did today eliminated 63% of the kprobes overhead in > this test. > > this too shows that there's lots of performance potential even in > INT3-based kprobes. So now you're resorting to your uber-talents as a kernel guru to bury the other side? This attitude, if you permit, I find cowardly and hypocritical. It renders a huge disservice to kernel developers at large by making it clear to outside observers that if they do not curry the favors of key kernel developers or submit material which is consensual to a given line of thought then they are not welcome. Keep on at it. The writing is on the wall for those kernel developers who genuinely wish that outside contributors make an effort in pushing stuff back into mainline. Keep on at it Ingo. Hack this one to death. I know of very few people who have your clout or understanding of the kernel intricacies to match you in such an arms race. Go Ingo, Go. Karim -- President / Opersys Inc. Embedded Linux Training and Expertise www.opersys.com / 1.866.677.4546 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/