linux-kernel - Re: Tracing configuration review

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Date:	Wed, 26 May 2010 01:13:10 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Chase Douglas <chase.douglas@...onical.com>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: Tracing configuration review

On Tue, May 25, 2010 at 06:01:06PM -0400, Steven Rostedt wrote:
> On Tue, 2010-05-25 at 22:17 +0200, Frederic Weisbecker wrote:
> > On Tue, May 25, 2010 at 03:46:08PM -0400, Steven Rostedt wrote:
> > > On Tue, 2010-05-25 at 15:31 -0400, Chase Douglas wrote:
> > > > # CONFIG_SCHED_TRACER is not set (headed for deprecation?)
> > > 
> > > Although it is headed for deprecation, I think it still gets set by
> > > other tracers, since it has the code to initiate the comm reader.
> > 
> > 
> > 
> > Doesn't actually CONTEXT_SWITCH_TRACER has the code for the
> > comm things?
> > 
> 
> Ah, I was confused. But then the SCHED_TRACER is the wakeup tracer, and
> that is heading for deprecation??


It would be nice if we can make it a ftrace_event_call, so that we
can control it like any other trace event.

But for now we don't have any replacement, so it is not yet deprecated.
That's why I said "in the long term" ;)

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