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bug#51886: 29.0.50; pixel-scroll-mode garbage collects like crazy
From: |
Eli Zaretskii |
Subject: |
bug#51886: 29.0.50; pixel-scroll-mode garbage collects like crazy |
Date: |
Tue, 16 Nov 2021 15:05:32 +0200 |
> Date: Tue, 16 Nov 2021 15:21:31 +0800
> From: Po Lu via "Bug reports for GNU Emacs,
> the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>
> Starting from `emacs -Q', do M-x pixel-scroll-mode RET, then configure
> it as follows:
>
> (setq pixel-dead-time 0)
> (setq pixel-resolution-fine-flag 1)
> (setq garbage-collection-messages t)
>
> Then scroll the display with the mouse wheel. It will garbage collect
> like crazy, leading to a great deal of stuttering (in emacs-28 as well).
>
> I want to reuse most of the code in pixel-scroll.el for XInput2 pixel
> scrolling, but this is holding me back, as the excessive garbage
> collection makes it completely unusable.
Did you try to figure out which part of the code produces most of the
garbage?