From: Eli Zaretskii <eliz@gnu.org>
To: Sebastian Sturm <s.sturm@arkona-technologies.de>
Cc: emacs-devel@gnu.org
Subject: Re: State of the overlay tree branch?
Date: Fri, 23 Mar 2018 15:39:22 +0300 [thread overview]
Message-ID: <83bmffhsp1.fsf@gnu.org> (raw)
In-Reply-To: <3098c9f6-31c4-e611-22af-865ba810f860@arkona-technologies.de> (message from Sebastian Sturm on Fri, 23 Mar 2018 11:15:48 +0100)
> From: Sebastian Sturm <s.sturm@arkona-technologies.de>
> Date: Fri, 23 Mar 2018 11:15:48 +0100
>
> > Also, what about my suggestion to count lines in a relative manner,
> > using count-lines from a line with a known number? You never replied
> > to that suggestion.
>
> you're right, sorry. In my opinion, a caching mechanism might be a very
> useful thing to have if it provides further performance benefits on top
> of what the noverlay branch has to offer. However, since count-lines may
> not be the only function that has to convert between char and byte
> positions (or is it?), and since the noverlay branch seems to resolve
> the overlay issue without having to introduce additional complexity in
> the elisp layer, implementing a caching mechanism before noverlay is
> merged into the master branch seems like a premature optimization to me.
It isn't premature optimization, because a buffer could have many
markers even if it has no or only a few overlays.
> Of course this is a layman's opinion (and maybe the case of "few
> overlays but many markers" is not as pathological as it appears to me);
> if you think a line number cache should be implemented, I'll go and
> discuss that with the lsp-mode maintainers (assuming that they are among
> the heaviest users of line-number-at-pos).
I think the effect should be at least measured before the decision
whether to do that is made.
next prev parent reply other threads:[~2018-03-23 12:39 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-18 20:14 State of the overlay tree branch? Sebastian Sturm
2018-03-18 20:39 ` Eli Zaretskii
2018-03-18 21:04 ` Sebastian Sturm
2018-03-18 23:03 ` Sebastian Sturm
2018-03-18 23:20 ` Sebastian Sturm
2018-03-19 6:43 ` Eli Zaretskii
2018-03-19 9:53 ` Sebastian Sturm
2018-03-19 12:57 ` Eli Zaretskii
2018-03-19 14:56 ` Stefan Monnier
2018-03-19 15:07 ` Sebastian Sturm
2018-03-19 15:13 ` Stefan Monnier
2018-03-20 1:23 ` Sebastian Sturm
2018-03-20 6:30 ` Eli Zaretskii
2018-03-21 0:36 ` Sebastian Sturm
2018-03-21 6:47 ` Eli Zaretskii
2018-03-22 13:16 ` Stefan Monnier
2018-03-22 19:54 ` Sebastian Sturm
2018-03-22 20:04 ` Sebastian Sturm
2018-03-22 20:52 ` Stefan Monnier
2018-03-22 23:11 ` Sebastian Sturm
2018-03-23 5:03 ` Stefan Monnier
2018-03-23 12:25 ` Sebastian Sturm
2018-03-23 12:47 ` Eli Zaretskii
2018-03-23 13:19 ` Stefan Monnier
2018-03-23 13:37 ` Noam Postavsky
2018-03-23 13:55 ` Stefan Monnier
2018-03-23 14:22 ` Eli Zaretskii
2018-03-23 14:39 ` Stefan Monnier
2018-03-23 19:39 ` Stefan Monnier
2018-03-25 15:11 ` Stefan Monnier
2018-03-25 16:39 ` Eli Zaretskii
2018-03-25 17:35 ` Stefan Monnier
2018-03-23 8:07 ` Eli Zaretskii
2018-03-23 9:08 ` Eli Zaretskii
2018-03-23 10:15 ` Sebastian Sturm
2018-03-23 12:39 ` Eli Zaretskii [this message]
2018-03-23 12:12 ` Stefan Monnier
2018-03-23 12:40 ` Eli Zaretskii
2018-03-23 12:55 ` Stefan Monnier
2018-03-19 6:36 ` Eli Zaretskii
2018-03-19 6:28 ` Eli Zaretskii
2018-03-21 14:14 ` Sebastien Chapuis
2018-03-21 15:35 ` Eli Zaretskii
2018-03-26 13:06 ` Stefan Monnier
2018-03-27 20:59 ` Sebastian Sturm
[not found] <<c24f8534-5245-026e-da18-f6be7b9702bf@arkona-technologies.de>
[not found] ` <<834lldp18f.fsf@gnu.org>
2018-03-18 21:37 ` Drew Adams
2018-03-19 1:33 ` Stefan Monnier
2018-03-19 6:50 ` Eli Zaretskii
2018-03-19 12:29 ` Stefan Monnier
2018-03-19 13:02 ` Eli Zaretskii
2018-03-19 13:43 ` Stefan Monnier
2018-03-19 14:28 ` Eli Zaretskii
2018-03-19 14:39 ` Stefan Monnier
2018-03-19 6:33 ` Eli Zaretskii
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