From: Steven Rostedt Subject: Re: [ltt-dev] Fw: [PATCH] ext4: Add markers for better debuggability Date: Sat, 10 Jan 2009 15:40:16 -0500 (EST) Message-ID: References: <20090109170408.75C1.KOSAKI.MOTOHIRO@jp.fujitsu.com> <20090109144901.GA7262@Krystal> <20090109185840.GD23869@mit.edu> <20090110161906.GB20526@Krystal> <20090110184240.GA31579@mit.edu> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Mathieu Desnoyers , KOSAKI Motohiro , ltt-dev@lists.casi.polymtl.ca, Ext4 Developers List , linux-kernel@vger.kernel.org, Ingo Molnar To: Theodore Tso Return-path: Received: from hrndva-omtalb.mail.rr.com ([71.74.56.125]:62950 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751233AbZAJUkV (ORCPT ); Sat, 10 Jan 2009 15:40:21 -0500 In-Reply-To: <20090110184240.GA31579@mit.edu> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Sat, 10 Jan 2009, Theodore Tso wrote: > > P.S. At the kernel summit, there was some talk about a very > simplified interface that would allow us to extract text dumps from > tracepoints without having to download a huge userspace utility like > SystemTap --- or LTTng. Has that been written yet, or is the only way > for me to use Tracepoints right now is to figure out how to use the > whole LTTng infrstructure? Actually, that's one of the things ftrace is suppose to do, and is on my todo list. To track all trace points, and be able to hook into any one and print them out to the trace. -- Steve