Subject: bug#55729: 27.1; Emacs 28.1 `string-match' is five times slower than Emacs 27.1

From: Lars Ingebrigtsen <[email-masked]>
Date: Mon, 30 May 2022 17:09:58 +0200

Chen Bin <[email-masked]> writes:

> Using same machine, same emacs setup, 28 is alwasy much slower than 27.

How much slower?

I tried your test, and the results were within a few percentages of each
other in 27.1 and 28.1.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no