GNU bug report logs - #19776
25.0.50; HTML rendering is very slow

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: stefan <at> marxist.se, 19776 <at> debbugs.gnu.org, monnier <at> iro.umontreal.ca, rms <at> gnu.org
Subject: bug#19776: 25.0.50; HTML rendering is very slow
Date: Mon, 25 Oct 2021 16:20:21 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Cc: Eli Zaretskii <eliz <at> gnu.org>,  19776 <at> debbugs.gnu.org,  rms <at> gnu.org,
>   monnier <at> iro.umontreal.ca
> Date: Mon, 25 Oct 2021 15:08:48 +0200
> 
> Stefan Kangas <stefan <at> marxist.se> writes:
> 
> > I didn't study what you did here, but one thing that would be really
> > nice is if we could update this message dynamically.  Other software
> > show a spinning marker for example, perhaps we could do something
> > similar?  In the simplest case, you just need to update a character
> > every 0.1 seconds (or something) in the sequence "|/-\".
> >
> > I'm not an expert on UIX by any means, but AFAIK, users like it when
> > there is some visible feedback that the program didn't just go and die.
> > Research shows that the brain is easy to trick that way; even just a
> > dumb little spinning thing makes people subjectively feel that the
> > program is more responsive.  Maybe we could use that to our advantage.
> 
> These days, you usually get a spinning thing from the OS when the
> application is unresponsive in this way, I guess?
> 
> But, yes, this mechanism could easily be extended to display a spinner.  

??? We already have it: see hourglass pointer.  And it does use
atimers.

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