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bug#21453: When font size is temporarily increased Emacs is slow
From: |
Lars Ingebrigtsen |
Subject: |
bug#21453: When font size is temporarily increased Emacs is slow |
Date: |
Sun, 17 Nov 2019 07:32:17 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
>> Here I post measured times:
>>
>> Font Size Time in Seconds
>> normal 301.423
>> +1 1055.157
>> -1 487.935
>
> I see something very different on my system, so this could be specific
> to X or even your font back-end (xft).
>
> Here are my times:
>
> Font Size Time in Seconds
> ELisp Fundamental
> normal 139.9 113.2
> +1 140.4 112.2
> -1 282.0 126.4
> -2 148.8
> +2 114.4
I tried this on my system (with the test file provided).
The test case is:
(benchmark-progn
(while (not (eobp))
(call-interactively #'next-line)))
normal 25s
+1 31s
+2 25s
So basically, they're all more or less the same now, so I'm guessing
that whatever Mark was seeing in Emacs 25 has gone away now (as Emacs
has gotten a new font backend etc), so I'm closing this bug report.
If this is still an issue in Emacs 27, please reopen.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
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