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From: Eli Zaretskii <eliz@gnu.org>
To: Hongyi Zhao <hongyi.zhao@gmail.com>
Cc: emacs-devel@gnu.org
Subject: 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.
Date: Sat, 19 Jun 2021 09:57:32 +0300	[thread overview]
Message-ID: <8335texrxf.fsf@gnu.org> (raw)
In-Reply-To: <CAGP6PO+5QjiB4jkk1x-VZrhm-gUzEiv7dC_sJH_gi1cRzMGu2Q@mail.gmail.com> (message from Hongyi Zhao on Sat, 19 Jun 2021 14:39:46 +0800)

> From: Hongyi Zhao <hongyi.zhao@gmail.com>
> Date: Sat, 19 Jun 2021 14:39:46 +0800
> 
> > > Then run `M-x list-input-methods` and scroll down the screen in input
> > > method panel using the mouse or arrow key will cause Emacs
> > > unresponsive for about 1 minute.
> >
> > It isn't necessarily strange: Emacs looks for the fonts needed to
> > display the relevant characters, so if you have a lot of fonts
> > installed, and some character is not supported, it will take Emacs a
> > lot of time to scan all those fonts.
> 
> Thank you for your analysis. That is really my situation. See below:
> 
> $ 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?  And if you then scroll
down through the HELLO file, do you also see long delays at some
point?



  parent reply	other threads:[~2021-06-19  6:57 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-19  5:05 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
2021-06-19  6:13 ` Eli Zaretskii
     [not found]   ` <CAGP6PO+5QjiB4jkk1x-VZrhm-gUzEiv7dC_sJH_gi1cRzMGu2Q@mail.gmail.com>
2021-06-19  6:57     ` Eli Zaretskii [this message]
2021-06-19  7:16       ` Hongyi Zhao
2021-06-19  9:30         ` Eli Zaretskii
2021-06-19  9:47           ` Hongyi Zhao
2021-06-19 10:03             ` Eli Zaretskii
2021-06-19 10:16               ` Hongyi Zhao
2021-06-19 10:31                 ` Eli Zaretskii
2021-06-19 10:48                   ` Hongyi Zhao
2021-06-19 10:55                     ` Eli Zaretskii
2021-06-19 11:00                       ` Eli Zaretskii
2021-06-19 13:42                         ` Hongyi Zhao
2021-06-19 13:49                           ` Eli Zaretskii
2021-06-19 14:19                             ` Hongyi Zhao
2021-06-19 14:28                               ` Eli Zaretskii
2021-06-19 15:17                                 ` Hongyi Zhao
2021-06-19  6:14 ` Eli Zaretskii

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