bug#26710: Fwd: 25.2; project-find-regexp makes emacs use 100% cpu

[Eli Zaretskii]

> Cc: hariharanrangasamy@gmail.com, 26710@debbugs.gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Wed, 3 May 2017 03:14:52 +0300
> 
> On 02.05.2017 20:26, Eli Zaretskii wrote:
> 
> > The sentinel/filter won't be called at all if keyboard/mouse input is
> > available.  Once they are called, if each call takes a long processing
> > time, the UI could feel sluggish, yes.
> 
> Hmm, and if we're in "many calls, each of them fairly fast" situation?

Then there should be no problem with UI responsiveness.

> Sounds like the UI might be quite usable (but doing anything with it 
> would slow down the processing of search results).

Correct.