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Re: The Emacs master is much slower than the emacs-27 branch.
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From: |
Eli Zaretskii |
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Subject: |
Re: The Emacs master is much slower than the emacs-27 branch. |
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Date: |
Thu, 03 Dec 2020 22:17:33 +0200 |
> Date: Thu, 3 Dec 2020 18:15:30 +0000
> From: Alan Mackenzie <acm@muc.de>
>
> I've got pretty much up to date copies of both the master and the
> emacs-27 branches.
>
> When I run my customary benchmark (see below) on master's src/xdisp.c in
> master, it's taking around 34s. On emacs-27, it's taking 22s.
Optimized builds or unoptimized ones?
In unoptimized builds I get almost no difference: Emacs 28 is about 4%
slower than Emacs 27. And the profiles look almost identical.