Re: Running process filters in another thread

[Eli Zaretskii]

> From: yyoncho <address@hidden>
> Date: Fri, 28 Sep 2018 21:21:23 +0300
> 
> I want to raise this topic regarding the rise of Language servers and the 
> performance
> problems that are related to parsing process output on UI thread.
> 
> I am not familiar with emacs internals and I am not sure whether this is 
> doable
> but I wonder whether providing the option to do the parsing(and probably 
> more?)
> in a separate thread and then call the *filter* function on emacs side in UI
> thread with elisp data structures like lists, hashmaps etc. instead of raw
> string is feasible which would be similar to what is happening in Javascript 
> world.

Emacs threads are cooperative, and only one thread can run at any
given time.  So it i's unclear to me how running process filters in a
separate thread will help improve the performance in this case,
because Emacs will still be locked up when that other thread runs the
filter.

Or am I missing something?