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From: Lars Ingebrigtsen <larsi@gnus.org>
To: Aaron Jensen <aaronjensen@gmail.com>
Cc: Dmitry Gutov <dgutov@yandex.ru>,
	24048@debbugs.gnu.org, Stefan Monnier <monnier@iro.umontreal.ca>
Subject: bug#24048: 25.0.95; syntax-ppss can be slow
Date: Fri, 03 Dec 2021 17:26:50 +0100	[thread overview]
Message-ID: <87mtlhwt6d.fsf@gnus.org> (raw)
In-Reply-To: <CAHyO48yd0c_4mwP-boBGwW64LxrwMaXL0sncww01UvZ7iSAJNA@mail.gmail.com> (Aaron Jensen's message of "Thu, 2 Dec 2021 21:38:07 -0500")

Aaron Jensen <aaronjensen@gmail.com> writes:

> I can still reproduce it with the specified repro:
>
> Load
> https://gist.githubusercontent.com/aaronjensen/d4cd40347a916dd36c8239afecf64a7d/raw/b52440bb51b96193a365a7f4cc1c8733ba98476f/syntax-ppss-slow-repro.ex
> Install and enable elixir-mode
>
> At top of file:
> M-: (benchmark 100 '(syntax-ppss))
>
> On line 71:
> M-: (benchmark 100 '(syntax-ppss))
>
> For me it's 0.1ms vs 5ms

Thanks for checking.

Perhaps Stefan has some insights here; added to the CCs.

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





  reply	other threads:[~2021-12-03 16:26 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-21 14:29 bug#24048: 25.0.95; syntax-ppss can be slow Aaron Jensen
2016-07-25  1:16 ` Dmitry Gutov
2016-07-25  7:12   ` Aaron Jensen
2016-07-25 12:42     ` Dmitry Gutov
2016-07-25 15:08       ` Aaron Jensen
2018-03-30 13:09         ` Aaron Jensen
2021-12-01 19:47           ` Lars Ingebrigtsen
2021-12-03  2:38             ` Aaron Jensen
2021-12-03 16:26               ` Lars Ingebrigtsen [this message]
2021-12-03 17:01 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-12-04  1:31   ` Aaron Jensen
2021-12-04  2:41     ` Lars Ingebrigtsen
2021-12-04 14:40     ` Dmitry Gutov
2021-12-04 16:27       ` Aaron Jensen
2021-12-05  0:13         ` Dmitry Gutov
2021-12-05  5:06           ` Aaron Jensen

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