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

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Message-Id: <1158267906.5068.49.camel@localhost>
Date:	Thu, 14 Sep 2006 17:05:06 -0400
From:	Michel Dagenais <michel.dagenais@...ymtl.ca>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Martin Bligh <mbligh@...igh.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...l.org>, Ingo Molnar <mingo@...hat.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tom Zanussi <zanussi@...ibm.com>, ltt-dev@...fik.org,
	fche@...hat.com
Subject: Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108


> the question is: what is more maintainance, hundreds of static 
> tracepoints (with long parameter lists) all around the (core) kernel, or 
> hundreds of detached dynamic rules that need an update every now and 
> then? [but of which most would still be usable even if some of them 
> "broke"] To me the answer is clear: having hundreds of tracepoints 
> _within_ the source code is higher cost. But please prove me wrong :-)

Actually I rarely find that any of the 70 000 printk is such a huge
nuisance to code readability. They may even help understand what is
going on in a code area you are less familiar with.

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