From: Eli Zaretskii <eliz@gnu.org>
To: Drew Adams <drew.adams@oracle.com>
Cc: npostavs@gmail.com, 30539@debbugs.gnu.org
Subject: bug#30539: 26.0; `char-displayable-p' is much slower in Emacs 25 and 26
Date: Fri, 23 Feb 2018 09:14:39 +0200 [thread overview]
Message-ID: <834lm85g9s.fsf@gnu.org> (raw)
In-Reply-To: <d4cfae2a-b941-4385-afd9-a823cca10c08@default> (message from Drew Adams on Thu, 22 Feb 2018 20:07:09 -0800 (PST))
> Date: Thu, 22 Feb 2018 20:07:09 -0800 (PST)
> From: Drew Adams <drew.adams@oracle.com>
> Cc: 30539@debbugs.gnu.org
>
> > > Another question is whether this bug should/will affect all
> > > users or only some? If the latter then I can let users
> > > decide whether to test `char-displayable-p' (I have an
> > > option for that anyway) or whether to bind
> > > `inhibit-compacting-font-caches to `t'. If only some users
> > > are affected by the bug, do we know why? Does it have to
> > > do with the fonts they have installed, for example?
> >
> > Well, as I mentioned, I don't see it on my GNU/Linux box, so it's not
> > universal. I would guess the fonts installed is the main factor.
>
> I googled a bit for that variable, and there are a bunch of
> Emacs bugs and other posts about it. Seems like (to be
> confirmed) it is a problem only for MS Windows (?), and
> maybe only for TrueType fonts (?).
AFAIR, this isn't seen only on Windows. And yes, only some fonts need
this, if you have them installed.
next prev parent reply other threads:[~2018-02-23 7:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-19 22:07 bug#30539: 26.0; `char-displayable-p' is much slower in Emacs 25 and 26 Drew Adams
2018-02-20 18:08 ` Drew Adams
2018-02-22 14:50 ` Drew Adams
2018-02-23 1:49 ` Noam Postavsky
2018-02-23 2:43 ` Drew Adams
2018-02-23 3:32 ` Noam Postavsky
2018-02-23 4:07 ` Drew Adams
2018-02-23 7:14 ` Eli Zaretskii [this message]
2020-06-27 21:34 ` Drew Adams
2020-11-18 15:35 ` Stefan Kangas
2020-11-18 17:21 ` Eli Zaretskii
2020-11-18 18:30 ` Stefan Kangas
2018-02-28 19:21 ` Charles A. Roelli
[not found] <<8c79c39f-7abb-4591-a676-17fb46af5a8f@default>
[not found] ` <<ec3497d7-9a7d-4be8-8712-19bb6bdd96e8@default>
[not found] ` <<m2d10oj4xj.fsf@aurox.ch>
2018-02-28 19:53 ` Drew Adams
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