bug#38561: 27.0.50; Feature request: expose buffer size setting for process filters

[Eli Zaretskii]

> From: yyoncho <yyoncho@gmail.com>
> Date: Tue, 10 Dec 2019 19:25:17 +0200
> 
> Adding some performance numbers from lsp-mode project.
> 
> (with-current-buffer "DemoApplication.java"
>   (benchmark-run 10 (lsp-request "workspace/symbol" (list :query "S"))))
> 
> ;; Emacs from master
> => (4.203047857 0 0.0)
> 
> ;; tested with emacs compiled with 1mb buffer.
> => (3.132925793 0 0.0)

Your wish has been granted, see the new variable
read-process-output-max.

I'd appreciate testing this with your use cases.