Re: [PATCH 2/2] perf: Walk through the relevant events only

From: Frederic Weisbecker
Date: Fri Mar 05 2010 - 12:33:55 EST

On Fri, Mar 05, 2010 at 06:20:29PM +0100, Peter Zijlstra wrote:
> On Fri, 2010-03-05 at 18:03 +0100, Frederic Weisbecker wrote:
> >
> > Now isn't the problem more in the fact that most of the swevents
> > should be tracepoints?
> No, different interface, and I don't want to require TRACE=y, I already
> utterly hate that x86 requires PERF=y.

This could be reduced to the strict minimum, say CONFIG_TRACEPOINT
and some code around just to support the event ids.

Software events could be made optionals too.

I just don't like this multiplication of probe points of different
natures in a single point. That's wasteful.

> I already
> utterly hate that x86 requires PERF=y.

Me too, and it's my bad, so me double too. Sometimes I think
we should make BREAKPOINTs optional, default y. I just don't know
if something like this that has always been builtin can be made

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