From: Ihor Radchenko <yantar92@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 35453@debbugs.gnu.org
Subject: bug#35453: 26.1; Poor performance of vertical-motion in large org buffer
Date: Sat, 18 May 2019 18:36:37 +0800 [thread overview]
Message-ID: <87mujk6ocq.fsf__15502.6848706015$1558175927$gmane$org@yantar92-laptop.i-did-not-set--mail-host-address--so-tickle-me> (raw)
In-Reply-To: <834l68lwoz.fsf@gnu.org>
> There are no intervals in this story. The way overlays are
> implemented, they don't use intervals (if by that you mean the
> facilities in intervals.c). Someone was working on making overlays
> more efficient by changing the low-level implementation details, but
> that work is yet unfinished.
I see. Hope that overlays will be optimised eventually...
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Ihor Radchenko <yantar92@gmail.com>
>> Cc: 35453@debbugs.gnu.org
>> Date: Sun, 05 May 2019 09:05:46 +0800
>>
>> > Of course, if someone comes up with ideas how to speed up
>> > vertical-motion without changing what Org does with overlays and/or
>> > how overlays are implemented, such ideas will be most welcome.
>>
>> Rather dumb idea.
>> Currently, vertical-motion just loops over all the intervals in the
>> buffer. What if we optimise next-single-char-property-change and use it
>> in vertical-motion? Say, the interval data structure can extended. In
>> addition to the currently available pointers to next and previous
>> intervals, each (or just 'invisible') property of the interval might
>> also contain a pointer to next/previous interval with different property
>> value. Then, by increasing the structure size a bit, we can
>> significantly speed up the buffer motion commands.
>
> There are no intervals in this story. The way overlays are
> implemented, they don't use intervals (if by that you mean the
> facilities in intervals.c). Someone was working on making overlays
> more efficient by changing the low-level implementation details, but
> that work is yet unfinished.
next prev parent reply other threads:[~2019-05-18 10:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87pnpaob79.fsf@yantar92-laptop.i-did-not-set--mail-host-address--so-tickle-me>
[not found] ` <83zhoatavq.fsf@gnu.org>
2019-05-05 1:05 ` bug#35453: 26.1; Poor performance of vertical-motion in large org buffer Ihor Radchenko
[not found] ` <87k1f5ww0l.fsf@yantar92-laptop.i-did-not-set--mail-host-address--so-tickle-me>
2019-05-05 15:58 ` Eli Zaretskii
[not found] ` <834l68lwoz.fsf@gnu.org>
2019-05-18 10:36 ` Ihor Radchenko [this message]
[not found] ` <87mujk6ocq.fsf@yantar92-laptop.i-did-not-set--mail-host-address--so-tickle-me>
2022-10-29 9:02 ` Ihor Radchenko
2022-10-29 10:42 ` Eli Zaretskii
2022-10-29 13:31 ` Stefan Kangas
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