Re: Make emacs-eww render asynchronously

[YUE Daian <sheepduke@gmail.com>]

On 2019-03-19 11:10, Vladimir Sedach <vas@oneofus.la> wrote:
>> The emacs-w3m fetches the page asynchronously, but the rendering process
>> will freeze Emacs for a long time.
>
> Yes, this is an actual problem. Óscar Fuentes probably does not
> notice it because he must have a fast computer - if you are hacking
> elisp code it is a good idea to do it on old slow hardware. I find
> that profiler.el is not very useful for discovering things that cause
> lag and latency. In case anyone is reading this and thinking "get off
> your heirloom VAX grandpa, here is a nickel, buy a better computer,"
> there is no reason for computers with gigahertz-plus CPUs and a
> gigabyte of memory to end up in the landfill, even if they are 10+
> years old. And work on performance issues caused by sloppy code and
> bad algorithms/data structures will benefit all GNU Emacs users.
>

>> Is it a way to make emacs-w3m render pages asynchronously?
>
> The cause of the problem will not be fixed by asynchronous rendering.
> emacs-w3m code has some real problems and is doing a lot of
> unnecessary work.
>
> If you would like to contribute to emacs-w3m, the details for
> subscribing to the emacs-w3m mailing list can be found at:
> http://emacs-w3m.namazu.org/
>
> The source code repository is now at:
> https://github.com/emacs-w3m/emacs-w3m
>
>> Or should I start to use eww exclusively instead of emacs-w3m?
>
> You can do both. It is probably easier to add features and w3m-style
> rendering to eww than to fix emacs-w3m.
>
> Vladimir

Maybe you are right. IMHO emacs-w3m is not easy to hack.

Then the question would become "how to make eww fetch pages
asynchronously." ;-)