GNU bug report logs - #68006
30.0.50; Image-mode speed

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Manuel Giraud <manuel <at> ledu-giraud.fr>
Cc: stefankangas <at> gmail.com, 68006 <at> debbugs.gnu.org
Subject: bug#68006: 30.0.50; Image-mode speed
Date: Thu, 04 Jan 2024 20:55:40 +0200

> From: Manuel Giraud <manuel <at> ledu-giraud.fr>
> Cc: stefankangas <at> gmail.com,  68006 <at> debbugs.gnu.org
> Date: Thu, 04 Jan 2024 19:42:53 +0100
> 
> But anyway, you're thinking about another image cache completely user
> manageable?

Yes.

> I guess it is a much more harder problem to tackle.

Probably.  But anything else will be IMO a kludge.  (We do have
kludges in Emacs, so we could have one here as well, of course.  I
just thought that it would be good to avoid it if possible).

> For starters, as the current image-mode is using the 'image' display
> property which uses the current image cache, I imagine that it
> should then be replaced by something else?

Yes, probably.  And if you are going for the simple solution, please
keep in mind that image-cache-eviction-delay is a global variable, and
the images are cached on a per-frame basis.  So if image-mode enlarges
image-cache-eviction-delay, it will affect all the images, not just
those in image-mode buffers.  One more reason why I think we should
provide a separate and differently managed cache for this purpose.

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