Re: igc statistics display

[Eli Zaretskii <eliz@gnu.org>]

> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: Helmut Eller <eller.helmut@gmail.com>,  emacs-devel@gnu.org
> Date: Fri, 10 Jan 2025 09:05:14 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > SystemTap is not the ideal means for such a facility.  Its only
> > significant advantage is that it's supported by GDB.  But its huge
> > disadvantage is that it's a Linux-only facility.
> >
> > In addition, I feel that this is too low-level for our purposes.  We
> > need something more akin to trace-redisplay.
> 
> I must say upfront that I've only read about dtrace for a couple hours
> and asked Gemini a few questions. From that, my understanding is that an
> application can generate its own application-specific events that carry
> additional data, including strings, int, floats, and so on, structs (not
> sure if I believe Gemini in that case, but who knows). (Helmut, please
> correct me if that's wrong.)
> 
> If that's true, one could include the info needed for a redisplay trace
> in the event.
> 
> What events to generate for what is of course another question.

If we need to produce our own data, then how is using these facilities
more useful than just printing the stuff to stderr?