Re: [PATCH] ftrace: add an fsync tracer

[Arjan van de Ven]

On Thu, 6 Nov 2008 10:34:50 -0500 (EST)
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> 
> What I would like is a single "event tracer" that does all of this.
> But add the ability to start and stop different events. We could start
> with this tracer, and then add more events to this tracer. Have a
> separate file to show which events are available.
> 
> This will keep the 'available_tracers' file small, but it would be
> fine if the 'events' file grew large.

well 2 ounces versus one liter ;)


what is the real need is
1) Have a trace point in the source
2) Associate a "formatting function" with that point 
   (which basically transforms the trace parameters to, say, a string)
3) A way to turn the trace point on/off.

right now this is what the fsync tracer does, because it's the only way
to do such a thing.
I don't care how to otherwise do it ....


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
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