bug#58558: 29.0.50; re-search-forward is slow in some buffers

[Ihor Radchenko]

Lars Ingebrigtsen <larsi@gnus.org> writes:

>> The slowdown becomes slightly better, but nowhere close to Emacs 28:
>>
>> ;; Emacs 29
>> ;; Elapsed time: 16.953404s
>> ;; Emacs 29 + clean-mode
>> ;; Elapsed time: 13.290568s
>> ;; Emacs 28
>> ;; Elapsed time: 0.869748s
>
> Hm...  Another test -- could you try `find-file-literally' on the Org
> file and repeat the search?

I just switched between Emacs 28 and Emacs 29 and I do note that
right after loading Emacs and the Org file, Emacs 29 takes similar time
with Emacs 28.

I do know that things will get back to slow after a while. This problem
has been around on my machine for a long time.

I will report once I use Emacs long enough to observe the slowdown.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
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