Hi maintainers,
To reproduce, I evaluated these in the scratch buffer.
(defun sayhi (&rest _)
(while-no-input
(dotimes (_ 10000000)
(random)))
(message "Done."))
(add-hook 'post-command-hook 'sayhi)
After `C-x C-e`-ing the last line, I kept typing some arbitrary text at a normal speed.
With `emacs -Q -nw`, the last character shows up pretty much immediately after the new key is pressed (as I expect). In GUI, however, there is significant delay. Say if I type "hello world", then maybe "h" and "e" would show up, then nothing happens for a few seconds, then the rest would "burst out".
I'm not sure if this is considered a "bug", so sorry if this isn't the right place to report this. But after looking at documentation and a few other bug reports, it sounds like people expect `while-no-input' to work in this scenario? Also I see completion packages like Corfu and Vertico wrap things in this macro in the post-command-hook, and despite them doing that, auto-completion is still quite laggy for me, _only_ when in GUI. If this is not a bug, where should I submit a feature request?
Either way, thanks for your time.
Allen
---
In GNU Emacs 30.0.50 (build 1, x86_64-apple-darwin18.7.0, NS
appkit-1671.60 Version 10.14.6 (Build 18G9323)) of 2023-01-13 built on
Allens-MacBook-Air.local
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