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From: Ihor Radchenko <yantar92@gmail.com>
To: Max Nikulin <manikulin@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: profiling latency in large org-mode buffers (under both main & org-fold feature)
Date: Sat, 26 Feb 2022 15:45:04 +0800	[thread overview]
Message-ID: <87lexy2hrz.fsf@localhost> (raw)
In-Reply-To: <svaiji$prt$1@ciao.gmane.io>

Max Nikulin <manikulin@gmail.com> writes:

> Thank you, Ihor. I am still not motivated enough to read whole page but 
> searching for "interval" (earlier I tried "overlay") resulted in the 
> following message:
>
> Message-ID: 		<9206230917.AA16758@mole.gnu.ai.mit.edu>
> Date: 	Tue, 23 Jun 92 05:17:33 -0400
> From: 	rms@gnu.ai.mit.edu (Richard Stallman)
>
> describing tree balancing problem in GNU Emacs and linear search in lucid.
>
> Unfortunately there is no "id" or "name" anchors in the file suitable to 
> specify precise location. Even the link href is broken.

I think we have a misunderstanding here. That page does not contain much
of technical details. Rather a history. AFAIU, initially Emacs wanted to
implement balanced tree structure to store overlays, but the effort
stalled for a long time. Then, a company rolled out a simple list
storage causing a lot of contradiction related to FSF and a mojor Emacs
fork. At the end, the initial effort using balanced tree on GNU Emacs
side did not go anywhere and GNU Emacs eventually copied a simple list
approach that is backfiring now, when Org buffers actually do contain a
large numbers of overlays.

> Actually I suspect that markers may have a similar problem during regexp 
> searches. I am curious if it is possible to invoke a kind of "vacuum" 
> (in SQL parlance). Folding all headings and resetting refile cache does 
> not restore performance to the initial state at session startup. Maybe 
> it is effect of incremental searches.

I doubt that markers have anything to do with regexp search itself
(directly). They should only come into play when editing text in buffer,
where their performance is also O(N_markers).

Best,
Ihor



  reply	other threads:[~2022-02-26  7:47 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-21 21:06 profiling latency in large org-mode buffers (under both main & org-fold feature) Matt Price
2022-02-21 22:22 ` Samuel Wales
2022-02-22  5:33   ` Ihor Radchenko
2022-02-22  5:44     ` Kaushal Modi
     [not found]       ` <CAN_Dec8kW5hQoa0xr7sszafYJJNmGipX0DA94DKNh11DWjce8g@mail.gmail.com>
2022-02-23  2:41         ` Matt Price
2022-02-23  5:22           ` Ihor Radchenko
2022-02-23 14:47             ` Matt Price
2022-02-23 15:10               ` Ihor Radchenko
2022-02-22 21:11     ` Rudolf Adamkovič
2022-02-23 12:37       ` Org mode profiling meetup on Sat, Feb 26 (was: profiling latency in large org-mode buffers (under both main & org-fold feature)) Ihor Radchenko
2022-02-23 16:43         ` Kaushal Modi
2022-02-25 14:30         ` Ihor Radchenko
2022-02-26 12:04           ` Ihor Radchenko
2022-02-26 12:51             ` Ihor Radchenko
2022-02-26 15:51               ` Quiliro Ordóñez
2022-03-23 10:57                 ` #2 Org mode profiling meetup on Sat, Mar 26 (was: Org mode profiling meetup on Sat, Feb 26 (was: profiling latency in large org-mode buffers (under both main & org-fold feature))) Ihor Radchenko
2022-03-24 11:17                   ` Ihor Radchenko
2022-03-24 11:27                   ` Bruce D'Arcus
2022-03-24 13:43                     ` Matt Price
2022-03-24 13:49                     ` Ihor Radchenko
2022-03-26 11:59                   ` Ihor Radchenko
2022-03-27  8:14                     ` Ihor Radchenko
2022-04-21  8:05                   ` #3 Org mode profiling meetup on Sat, Apr 23 (was: #2 Org mode profiling meetup on Sat, Mar 26) Ihor Radchenko
2022-04-23 12:08                     ` Ihor Radchenko
2022-04-24  4:27                       ` Ihor Radchenko
2022-02-27  7:41               ` Org mode profiling meetup on Sat, Feb 26 (was: profiling latency in large org-mode buffers (under both main & org-fold feature)) Ihor Radchenko
2022-02-23 16:03     ` profiling latency in large org-mode buffers (under both main & org-fold feature) Max Nikulin
2022-02-23 16:35       ` Ihor Radchenko
2022-02-25 12:38         ` Max Nikulin
2022-02-26  7:45           ` Ihor Radchenko [this message]
2022-02-26 12:45             ` Max Nikulin
2022-02-27  6:43               ` Ihor Radchenko
2022-03-02 12:23                 ` Max Nikulin
2022-03-02 15:12                   ` Ihor Radchenko
2022-03-03 14:56                     ` Max Nikulin
2022-03-19  8:49                       ` Ihor Radchenko
2022-02-26 15:07     ` Jean Louis
2022-02-23  2:39   ` Matt Price
2022-02-23  5:25     ` Ihor Radchenko
2022-02-22  5:30 ` Ihor Radchenko

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