Re: Run `M-x list-input-methods` and then scroll down the screen in input method panel using the mouse or arrow key will cause Emacs unresponsive for about 1 minite.

[Hongyi Zhao <hongyi.zhao@gmail.com>]

On Sat, Jun 19, 2021 at 5:30 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > From: Hongyi Zhao <hongyi.zhao@gmail.com>
> > Date: Sat, 19 Jun 2021 15:16:36 +0800
> > Cc: emacs-devel@gnu.org
> >
> > > > $ fc-list |wc
> > > >   10597   33360 1138340
> > >
> > > If you invoke Emacs with "emacs -Q" and then type "C-h h", how long
> > > does it take Emacs to display the HELLO file?
> >
> > It presumably takes the same duration as reported before in this issue.
>
> "Presumably" means that you tried that, and the time it took was
> approximately the same?

Yes.

>
> > Another strange thing: the Emacs installed from apt repo doesn't have
> > this problem.
>
> In "emacs -Q" or without the -Q switch?

Either way, as shown below:

$ /usr/bin/emacs
$ /usr/bin/emacs -Q

And both the following two commands completed instantly:

M-x list-input-methods RET
C-h h

> If the former, what are the
> differences between the two Emacs configurations, the slow one and the
> fast one?  If the latter, then the reason for the faster operation is
> in the init files that you get with the "apt" distribution.

HY
-- 
Assoc. Prof. Hongyi Zhao <hongyi.zhao@gmail.com>
Theory and Simulation of Materials
Hebei Vocational University of Technology and Engineering
NO. 552 North Gangtie Road, Xingtai, China