Re: [RFC][PATCH 00/13] ftrace: Allow multiple users to pick andchoose functions to trace

From: Steven Rostedt
Date: Tue May 10 2011 - 06:48:22 EST


On Tue, 2011-05-10 at 10:00 +0200, Ingo Molnar wrote:
> * Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>

> Well, i think we'd like to see the end result as well: i.e. function tracing
> exposed to a tracer that can do per task tracing (perf) and then demonstrating
> that independent tracing sessions can trace functions without impacting each
> other.

This could be done. I just wanted to post this RFC for now, just in case
someone found an issue with this design. When I get back home, I'll
complete this, and work with Frederic to get a RFC patch set with perf
working.

I don't want to rush this out as it can get complex and I want us to
"learn" the correct way of enabling this for perf. Although, it would be
nice to get this into 2.6.40. Perhaps we should be conservative and aim
for 2.6.41 and let it settle for a release.

-- Steve


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