bug#59935: 29.0.60; project-list-buffers is slow

[Eli Zaretskii]

> Date: Sat, 10 Dec 2022 21:19:30 +0200
> Cc: 59935@debbugs.gnu.org, juri@linkov.net
> From: Dmitry Gutov <dgutov@yandex.ru>
> 
> On 10/12/2022 16:33, Eli Zaretskii wrote:
> > OK, but I didn't suggest making any changes to revert-buffer-function
> > set up by "C-x p C-b".  You can still use process-buffers there, and
> > it shouldn't slow down "C-x p C-b" itself, since the call to
> > process-buffers that is part of revert-buffer-function is not supposed
> > to be evaluated when you set revert-buffer-function.  Right?  Or what
> > else am I missing?
> 
> Then only the 'g' binding will remain slow. An improvement, of course.

Why slow? it calls project-buffers only once.