linux-kernel - Re: [PATCH] Linux Kernel Markers 0.2 for Linux 2.6.17

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Date:	Tue, 19 Sep 2006 16:05:14 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	"S. P. Prasanna" <prasanna@...ibm.com>
Cc:	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>,
	Douglas Niehaus <niehaus@...s.ku.edu>,
	Tom Zanussi <zanussi@...ibm.com>,
	Paul Mundt <lethal@...ux-sh.org>, Jes Sorensen <jes@....com>,
	Richard J Moore <richardj_moore@...ibm.com>,
	William Cohen <wcohen@...hat.com>,
	"Martin J. Bligh" <mbligh@...igh.org>,
	Michel Dagenais <michel.dagenais@...ymtl.ca>,
	systemtap@...rces.redhat.com, ltt-dev@...fik.org
Subject: Re: [PATCH] Linux Kernel Markers 0.2 for Linux 2.6.17

Hi,

* S. P. Prasanna (prasanna@...ibm.com) wrote:
> I think having so many config options is not a good idea, you can group them
> and reduce the number of config options.
> 

Then we would have to determine what the scenarios are. The problem is to cover
all interesting instrumentation mixes efficiently.

I think it could be a good enough list :

Fprobes only
Dynamic + Fprobes (supports dynamic probes and uses fprobes for non probable
                   code)
Dynamic only
Printk only

Which would be expressed in the following menu :

choice Marker behavior
  * Inactive
  * Dynamic probes
  * Function probes (Fprobes)
  * Dynamic probes complemented with Fprobes
  * Printk

if selected "Dynamic probes" or "Dynamic probes complemented with Fprobes"
  choice2 Dynamic probes behavior
    * Kprobes
    * Jprobes

Any thoughts ?

Mathieu


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