On Wed, May 08, 2019 at 06:13:58PM +0200, Ævar Arnfjörð Bjarmason wrote:

quoted

I do wonder if this really needs to be part of the progress bar. The
goal of the progress bar is to give the user a sense that work is
happening, and (if possible, but not for "enumerating") an idea of when
it might finish. If the trace code can already do detailed timings, then
shouldn't we just be encouraging people to use that?

[...]
     -       progress->title = title;
     +       progress->title = "Reticulating splines";

Heh, OK, that's a fair reductio ad absurdum of my point. I guess what I
was trying to say is that we don't need to go overboard with accuracy as
long as we're giving a vague sense of the work. Precision measurements
can be handled through a different system.

But I don't mind if you can find a way to do these kind of cascaded
progress meters in a way that is pleasing to the eye and not hard to
handle in the callers of the code.

-Peff