GNU bug report logs - #30539
26.0; `char-displayable-p' is much slower in Emacs 25 and 26

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Package: emacs;

Reported by: Drew Adams <drew.adams <at> oracle.com>

Date: Mon, 19 Feb 2018 22:09:02 UTC

Severity: minor

Found in version 26.0

Done: Stefan Kangas <stefan <at> marxist.se>

Bug is archived. No further changes may be made.

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Message #46 received at 30539-done <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: npostavs <at> gmail.com, 30539-done <at> debbugs.gnu.org
Subject: Re: bug#30539: 26.0; `char-displayable-p' is much slower in Emacs 25
 and 26
Date: Wed, 18 Nov 2020 10:30:08 -0800

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Stefan Kangas <stefan <at> marxist.se>
>> Date: Wed, 18 Nov 2020 07:35:06 -0800
>> Cc: 30539 <at> debbugs.gnu.org
>>
>> > Doing (setq inhibit-compacting-font-caches t) brings back reasonable
>> > performance.
>> >
>> > I can't reproduce on my GNU/Linux box, although that may just be due to
>> > different fonts installed.  In particular, char-displayable-p never gave
>> > me nil.
>>
>> Given this change:
>>
>> commit f34f49f35e5c000a6ee070678f43d2ca38b76cad
>> Author: Eli Zaretskii <eliz <at> gnu.org>
>> Date:   Sat Sep 7 12:26:08 2019 +0300
>>
>>     Set inhibit-compacting-font-caches to t by default on MS-Windows
>>
>> Is there anything left to do here, or should this bug be closed?
>
> If the problem doesn't happen on GNU/Linux, we can close this.

I think this is Windows specific indeed.  Closing.
This bug report was last modified 4 years and 180 days ago.

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