From: Eli Zaretskii <eliz@gnu.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: chenbin.sh@gmail.com, 55729@debbugs.gnu.org
Subject: bug#55729: 27.1; Emacs 28.1 `string-match' is five times slower than Emacs 27.1
Date: Mon, 30 May 2022 18:58:17 +0300 [thread overview]
Message-ID: <83bkvfj9ly.fsf@gnu.org> (raw)
In-Reply-To: <87k0a3vyyh.fsf@gnus.org> (message from Lars Ingebrigtsen on Mon, 30 May 2022 17:09:58 +0200)
> Resent-From: Lars Ingebrigtsen <larsi@gnus.org>
> Original-Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
> Resent-CC: bug-gnu-emacs@gnu.org
> Resent-Sender: help-debbugs@gnu.org
> Cc: 55729@debbugs.gnu.org
> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Mon, 30 May 2022 17:09:58 +0200
>
> Chen Bin <chenbin.sh@gmail.com> 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.
With a 3GB file being inserted non-literally, there could be factors
at work here that are entirely unrelated to processing speed. The
implementation of string-match basically didn't change between Emacs
27 and Emacs 28, AFAICT.
next prev parent reply other threads:[~2022-05-30 15:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-30 14:45 bug#55729: 27.1; Emacs 28.1 `string-match' is five times slower than Emacs 27.1 Chen Bin
2022-05-30 15:01 ` Ihor Radchenko
2022-05-30 15:09 ` Lars Ingebrigtsen
2022-05-30 15:10 ` Lars Ingebrigtsen
2022-05-30 15:58 ` Eli Zaretskii [this message]
2022-05-30 16:03 ` Eli Zaretskii
2022-05-31 1:04 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-05-31 2:25 ` Eli Zaretskii
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