Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108

Roman Zippel
2006-09-17T15:17:04Z

Hi,

On Sun, 17 Sep 2006, Ingo Molnar wrote:

> > If they are useful and not hurting anyone, why should we?
>
> FYI, whether it is true that "they not hurting anyone" is one of those
> "secondary issues" that I analyzed in great detail in the emails
> yesterday, and which you opted not to "further dvelve into":

Ingo, you happily still ignore my primary issues, how serious do you
expect me to take this?

> so at least to me the rule in such a situation is clear: if we have the
> choice between two approaches that are useful in similar ways [*] but
> one has a larger flexibility to decrease the total maintainance cost,
> then we _must_ pick that one.

That would assume the choices are mutually exclusive, which you haven't
proven at all.

To put everything in yet another perspective: We have the kernel full of
security hooks, which are likely more invasive than any trace marker ever
will be. These security hooks are well hated by a few developers, but we
merged them anyway, because they are useful.
So the big question is now, why should it be impossible to create and
merge a well defined set of markers, which can be used by any tracer?

bye, Roman