bug#22519: 25.1.50; Emacs gets stuck while doing incremental search forward

[Eli Zaretskii]

> From: vincent.belaiche@gmail.com (Vincent Belaïche)
> Cc: Vincent Belaïche <vincent.belaiche@gmail.com>,
>   22519@debbugs.gnu.org
> Date: Wed, 16 Mar 2016 18:40:40 +0100
> 
> > If you are talking about the fact that Emacs searches for a character
> > in any fonts it thinks might be able to display it, then this isn't a
> > bug.  What else could Emacs do, when presented with a character that
> > cannot be displayed with fonts that are already loaded?
> 
> I don't this that _this_ as such is a bug, what is more annoying is that
> the slow-down lasts longer than the first scroll into the area where
> these characters are.

If the character wasn't found, then it makes sense to try looking up
the fonts again -- the user could install new fonts since the last
time.

> I could stay on the same region for hours, and whenever I made an
> edit it was slow --- loosing the WYSIWYGiness of the edition, that
> is I was seeing the full result of what I had typed one or two
> seconds after the typing had started.

Every redisplay might trigger another search for a suitable font.  The
solution really is to install the fonts you need.

Can we now close this bug?