linux-kernel - Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108

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Date:	Sun, 17 Sep 2006 23:32:51 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	Roman Zippel <zippel@...ux-m68k.org>,
	Thomas Gleixner <tglx@...utronix.de>, karim@...rsys.com,
	Andrew Morton <akpm@...l.org>,
	Paul Mundt <lethal@...ux-sh.org>, Jes Sorensen <jes@....com>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Tom Zanussi <zanussi@...ibm.com>, ltt-dev@...fik.org,
	Michel Dagenais <michel.dagenais@...ymtl.ca>
Subject: Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108


* Nick Piggin <nickpiggin@...oo.com.au> wrote:

> As an aside, there are quite a number of different types of tracing 
> things (mostly static, compile out) in the kernel. Everything from 
> blktrace to various userspace notifiers to lots of /proc/stuff could 
> be considered a type of static event tracing. I don't know what my 
> point is other than all these big, disjoint frameworks trying to be 
> pushed into the kernel. Are there any plans for working some things 
> together, or is that somebody else's problem?

AFAIK Jens has indicated interest in seeing experiments that would try 
to replace BKLTRACE with dynamic tracepoints, so it's being worked on.

but yes, that would be the general idea: to turn all existing ad-hoc 
tracing/debugging points in the kernel into static SystemTap markers or 
SystemTap scripts.

	Ingo
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