Re: [ANNOUNCE] New utility: 'trace'

From: Ingo Molnar
Date: Wed Nov 17 2010 - 09:00:35 EST



* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> On Wed, 2010-11-17 at 14:24 +0100, Ingo Molnar wrote:
> > > What about the filtering and other general features/functionality of
> > > ftrace? Is the anticipation that this will be ported over to perf?
> > > What about things like blktrace?
> >
> > Yeah, i'd love to see all that available. Filtering is available already on the
> > kernel perf event side and could be added as an option.
>
> Except I utterly detest the existing filter code.. it runs _after_ we do all the
> hard work and then makes us roll back when it decides we shouldn't output after
> all.
>
> But yes, it is functional.

I suspect that is what matters mostly - unless you think that it's impossible to
have a sane implementation of it, if the users come.

Thanks,

Ingo
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