From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932504AbZE3OiR (ORCPT ); Sat, 30 May 2009 10:38:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758210AbZE3OiH (ORCPT ); Sat, 30 May 2009 10:38:07 -0400 Received: from mx2.redhat.com ([66.187.237.31]:36335 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754682AbZE3OiF (ORCPT ); Sat, 30 May 2009 10:38:05 -0400 Message-ID: <4A2144FA.6080508@redhat.com> Date: Sat, 30 May 2009 10:38:50 -0400 From: Masami Hiramatsu User-Agent: Thunderbird 2.0.0.21 (X11/20090320) MIME-Version: 1.0 To: Christoph Hellwig CC: Ingo Molnar , Steven Rostedt , lkml , systemtap , kvm , DLE , Ananth N Mavinakayanahalli , Frederic Weisbecker , Tom Zanussi Subject: Re: [PATCH -tip v8 7/7] tracing: add kprobe-based event tracer References: <20090529000326.17532.70868.stgit@localhost.localdomain> <20090529000353.17532.71995.stgit@localhost.localdomain> <20090530081526.GC15755@infradead.org> In-Reply-To: <20090530081526.GC15755@infradead.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Christoph Hellwig wrote: > On Thu, May 28, 2009 at 08:03:53PM -0400, Masami Hiramatsu wrote: >> Add kprobes-based event tracer on ftrace. > > Wouldn't it make more sense to call this the dynamic event tracer? > > The use of kprobes is more an implementation detail than something > the user cares about. Hmm, I don't think so, because other tracers (e.g. hw breakpoint tracer) can also add their events dynamically by trace_add/remove_event_call. It's more flexible than this tracer includes those events. Thank you, -- Masami Hiramatsu Software Engineer Hitachi Computer Products (America) Inc. Software Solutions Division e-mail: mhiramat@redhat.com