From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754800AbYJXOiL (ORCPT ); Fri, 24 Oct 2008 10:38:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752210AbYJXOh5 (ORCPT ); Fri, 24 Oct 2008 10:37:57 -0400 Received: from mx2.redhat.com ([66.187.237.31]:52718 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751884AbYJXOh4 (ORCPT ); Fri, 24 Oct 2008 10:37:56 -0400 Date: Fri, 24 Oct 2008 10:37:44 -0400 From: "Frank Ch. Eigler" To: =?iso-8859-1?Q?Fr=E9d=E9ric?= Weisbecker Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Steven Rostedt , systemtap@sources.redhat.com Subject: Re: [PATCH 5/5] tracing/ftrace: Introduce the big kernel lock tracer Message-ID: <20081024143744.GA20768@redhat.com> References: <48F10B0B.406@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi - On Fri, Oct 24, 2008 at 03:43:49PM +0200, Frédéric Weisbecker wrote: > > [...] For comparison, this is how this sort of analysis may be > > done with systemtap [...] > That's a great and powerful tool. > > But just one sorrow: > I just think that's a pity that we have to use/learn a new scripting > language to use it. I understand. > I would rather prefer to use an API that provides functions/objects > for most common scripting languages. That is an interesting idea. One possible problem is that the final complete script "program" needs to be translated to something that can run quickly and safely inside the kernel. Full python or perl runtime + libraries would have been almost certainly unbearable. - FChE