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From: Eli Zaretskii <eliz@gnu.org>
To: Alan Mackenzie <acm@muc.de>
Cc: emacs-devel@gnu.org
Subject: Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%
Date: Wed, 01 Sep 2021 20:44:23 +0300	[thread overview]
Message-ID: <83r1e8p4w8.fsf@gnu.org> (raw)
In-Reply-To: <YS+5UgZ+sXleM5nK@ACM> (message from Alan Mackenzie on Wed, 1 Sep 2021 17:33:06 +0000)

> Date: Wed, 1 Sep 2021 17:33:06 +0000
> From: Alan Mackenzie <acm@muc.de>
> 
> When applied to C Mode, bug-reference-prog-mode slows down a scroll from
> point-min to point-max by around 7%.
> 
> Just how useful is bug-reference-prog-mode?  Is it really worth this 7%
> slowdown?

It is marginally useful, but 7% slowdown is too heavy a price, IMO.
This should be fixed.

(I thought that the code in jit-lock.el already handled this case by
computing a kind-of "maximum" out of all the return values of
jit-lock-functions, and treating a nil return value as expected, but
maybe my reading of the code was incorrect?)



  reply	other threads:[~2021-09-01 17:44 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-01 17:33 bug-reference-prog-mode slows down CC Mode's scrolling by ~7% Alan Mackenzie
2021-09-01 17:44 ` Eli Zaretskii [this message]
2021-09-01 17:55   ` Alan Mackenzie
2021-09-01 18:01     ` Eli Zaretskii
2021-09-01 18:20       ` Alan Mackenzie
2021-09-01 18:28         ` Eli Zaretskii
2021-09-01 19:19           ` Alan Mackenzie
2021-09-01 20:59 ` Stefan Monnier
2021-09-02  6:26   ` Eli Zaretskii
2021-09-02 16:57   ` Alan Mackenzie
2021-09-02 18:46     ` Stefan Monnier
2021-09-02 19:24       ` Alan Mackenzie
2021-09-02 21:08         ` Alan Mackenzie
2021-09-03  6:16           ` Eli Zaretskii
2021-09-03 12:30             ` Stefan Monnier
2021-09-03 12:38               ` Eli Zaretskii
2021-09-03 22:25                 ` Stefan Monnier
2021-09-04  6:13                   ` Eli Zaretskii
2021-09-04 13:36                     ` Stefan Monnier
2021-09-04 13:55                       ` Eli Zaretskii
2021-09-04 14:44                         ` Stefan Monnier
2021-09-04 14:56                           ` Eli Zaretskii
2021-09-04 15:55                             ` Stefan Monnier
2021-09-04 16:12                               ` Eli Zaretskii
2021-09-04 16:24                                 ` Stefan Monnier
2021-09-04 16:28                                   ` Eli Zaretskii
2021-09-04 16:40                                     ` Stefan Monnier
2021-09-03  6:10         ` Eli Zaretskii
2021-09-03 10:47           ` Alan Mackenzie
2021-09-03 11:24             ` Eli Zaretskii
2021-09-03 16:15               ` Alan Mackenzie
2021-09-03 12:27             ` Stefan Monnier
2021-09-03 12:19           ` Stefan Monnier
2021-09-03 12:35             ` Eli Zaretskii
2021-09-03 16:52           ` Alan Mackenzie
2021-09-03 20:51             ` Alan Mackenzie
2021-09-04  6:09               ` Eli Zaretskii
2021-09-04 14:50                 ` Alan Mackenzie
2021-09-04 15:00                   ` Stefan Monnier
2021-09-04 15:32                     ` Alan Mackenzie
2021-09-04 15:36                       ` Eli Zaretskii
2021-09-04 15:43                         ` Alan Mackenzie
2021-09-04 15:48                           ` Eli Zaretskii
2021-09-04 16:05                             ` Alan Mackenzie
2021-09-04 16:15                               ` Eli Zaretskii
2021-09-06 10:46                                 ` Alan Mackenzie
2021-09-06 11:10                                   ` Eli Zaretskii
2021-09-06 19:08                                     ` Alan Mackenzie
2021-09-06 19:23                                       ` Eli Zaretskii
2021-09-18 11:37                                         ` Alan Mackenzie
2021-09-18 11:59                                           ` Eli Zaretskii
2021-09-06 21:59                                       ` andrés ramírez
2021-09-07 19:47                                         ` Alan Mackenzie
2021-09-07 17:57                                           ` andrés ramírez
2021-09-06 13:24                                   ` Stefan Monnier
2021-09-04 16:06                       ` Stefan Monnier
2021-09-04 16:23                         ` Eli Zaretskii
2021-09-04 16:39                           ` Stefan Monnier
2021-09-04 17:19                             ` Eli Zaretskii
2021-09-04 17:47                               ` Stefan Monnier
2021-09-04 18:10                                 ` Eli Zaretskii
2021-09-04 18:40                                   ` Stefan Monnier
2021-09-11 12:49                                     ` Eli Zaretskii
2021-09-11 17:04                                       ` Stefan Monnier
2021-09-11 17:17                                         ` Eli Zaretskii
2021-09-11 18:00                                           ` Stefan Monnier
2021-09-11 18:16                                             ` Eli Zaretskii
2021-09-11 19:55                                               ` Stefan Monnier
2021-09-12  3:51                                                 ` Eli Zaretskii
2021-09-12 16:41                                                   ` Stefan Monnier
2021-09-12 16:53                                                     ` Eli Zaretskii
2021-09-12 17:41                                                       ` Stefan Monnier
2021-09-12 17:55                                                         ` Eli Zaretskii
2021-09-12 21:11                                                           ` Stefan Monnier

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