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From: Eli Zaretskii <eliz@gnu.org>
To: Dmitry Gutov <dgutov@yandex.ru>
Cc: 23278@debbugs.gnu.org
Subject: bug#23278: 25.0.92; font-lock-ensure is too slow
Date: Sat, 07 May 2016 11:27:09 +0300	[thread overview]
Message-ID: <83wpn6e0iq.fsf@gnu.org> (raw)
In-Reply-To: <86inzmy5e2.fsf@yandex.ru> (message from Dmitry Gutov on Tue, 12 Apr 2016 22:49:09 +0300)

> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Tue, 12 Apr 2016 22:49:09 +0300
> 
> Example:
> 
> Open xdisp.c, navigate to the first line. Evaluate:
> 
> (load "jit-lock")
> (benchmark 1000 '(font-lock-ensure (line-beginning-position)
>                                    (line-end-position)))
> 
> => 0.66s
> 
> Which puts a dampener on the idea of syntax highlighting xref results in
> the open files.
> 
> With the patch below, the benchmark executes 100 times faster.
> OK to apply?

If you run with this since the time of your message and saw no
problems, please push to emacs-25.  Otherwise, to master.

Thanks.





  reply	other threads:[~2016-05-07  8:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-12 19:49 bug#23278: 25.0.92; font-lock-ensure is too slow Dmitry Gutov
2016-05-07  8:27 ` Eli Zaretskii [this message]
2016-05-07 23:10   ` Dmitry Gutov
2016-05-09  0:28     ` Glenn Morris
2016-05-09  0:42       ` Dmitry Gutov

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