Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751634AbWIOTtN (ORCPT ); Fri, 15 Sep 2006 15:49:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751626AbWIOTtM (ORCPT ); Fri, 15 Sep 2006 15:49:12 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:61105 "EHLO mx2.mail.elte.hu") by vger.kernel.org with ESMTP id S1751618AbWIOTtL (ORCPT ); Fri, 15 Sep 2006 15:49:11 -0400 Date: Fri, 15 Sep 2006 21:40:24 +0200 From: Ingo Molnar To: Thomas Gleixner Cc: Andrew Morton , karim@opersys.com, Paul Mundt , Jes Sorensen , Roman Zippel , Mathieu Desnoyers , linux-kernel@vger.kernel.org, Christoph Hellwig , Ingo Molnar , Greg Kroah-Hartman , Tom Zanussi , ltt-dev@shafik.org, Michel Dagenais Subject: Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 Message-ID: <20060915194024.GA30459@elte.hu> References: <20060915135709.GB8723@localhost.usen.ad.jp> <450AB5F9.8040501@opersys.com> <450AB506.30802@sgi.com> <450AB957.2050206@opersys.com> <20060915142836.GA9288@localhost.usen.ad.jp> <450ABE08.2060107@opersys.com> <1158332447.5724.423.camel@localhost.localdomain> <20060915111644.c857b2cf.akpm@osdl.org> <1158348954.5724.481.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1158348954.5724.481.camel@localhost.localdomain> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: -3.7 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-3.7 required=5.9 tests=ALL_TRUSTED,AWL,BAYES_40 autolearn=no SpamAssassin version=3.0.3 -3.3 ALL_TRUSTED Did not pass through any untrusted hosts -1.1 BAYES_40 BODY: Bayesian spam probability is 20 to 40% [score: 0.3869] 0.7 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 679 Lines: 18 * Thomas Gleixner wrote: > I see a major advantage over static tracing in that: > > Static tracing is usually not enabled in production kernels, but the > dynamic tracing infrastructure can be enabled without costs. So you > can actually request traces (at least for the standard set of > tracepoints) from Joe User to track down complex problems. FYI, kprobes/SystemTap is already enabled in RHEL4. Ingo - 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/