Re: Some performance questions.

[Eli Zaretskii]

> Date: Wed, 8 Feb 2023 20:08:19 +0100
> From: Ergus <spacibba@aol.com>
> Cc: Eli Zaretskii <eliz@gnu.org>
> 
> 3) Now, in spite of it is much better, still there is a significant lag
> (compared with GNU/Linux) which concerns me about whats going on with
> the GC.
> 
> Now I get in the profiler-report:
> 
> 71 45% Automatic GC
> 68 43% redisplay_internal
>          jit-lock-function
>              ...
>              font-lock-fontify-keywords-region
> 
> 37 23%          c-font-lock-declarations
> 20 12%          c-font-lock-cut-off-declarators
> 
> I have not observed such lags before on GNU/Linux, so some idea what I
> may be doing wrong?
> 
> I know Eli uses MS-Windows frequently, so, any hint?

Try using c-ts-mode instead (assuming this is Emacs 29 and it was
built with tree-sitter).