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From: Ihor Radchenko <yantar92@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: "Basil L. Contovounesios" <contovob@tcd.ie>,
	 casouri@gmail.com, emacs-devel@gnu.org
Subject: Re: Exposing buffer text modifications to Lisp
Date: Sat, 25 Jun 2022 12:54:36 +0800	[thread overview]
Message-ID: <87bkuhwdf7.fsf@localhost> (raw)
In-Reply-To: <83v8ssisll.fsf@gnu.org>

Eli Zaretskii <eliz@gnu.org> writes:

> Btw, do we have recipes for measuring the effects of changing the data
> structures used for markers?  If we do have such recipes, did someone
> try to compare the performance in plain-ASCII Org buffers (where the
> conversion is trivial and shouldn't even access the markers) and
> non-ASCII buffers?  Inserting a single non-ASCII character somewhere
> in an otherwise plain-ASCII buffer should show the effect of many
> markers on the likes of CHAR_TO_BYTE.

AFAIK, buf_bytepos_to_charpos should take no time on plain-ASCII buffers
because

  /* If this buffer has as many characters as bytes,
     each character must be one byte.
     This takes care of the case where enable-multibyte-characters is nil.  */
  if (best_above == best_above_byte)
    return bytepos;

The recipe of measuring the effects is in
https://list.orgmode.org/orgmode/scedec$2g0$1@ciao.gmane.io/

That email literally provides Elisp code to run in order to measure the
effect.

Best,
Ihor



  reply	other threads:[~2022-06-25  4:54 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-19  1:35 Tree-sitter integration on feature/tree-sitter Kiong-Ge Liau
2022-05-20  2:01 ` Yuan Fu
2022-06-16 19:03   ` Yuan Fu
2022-06-16 19:25     ` [External] : " Drew Adams
2022-06-17  1:11       ` Yuan Fu
2022-06-17 14:22         ` Drew Adams
2022-06-17  1:24     ` Po Lu
2022-06-18  0:09       ` Yuan Fu
2022-06-17  2:00     ` Ihor Radchenko
2022-06-17  2:25       ` Lower-level change hook immune to with-silent-modifications Yuan Fu
2022-06-17  2:55         ` Stefan Monnier
2022-06-17  5:28           ` Eli Zaretskii
2022-06-17 10:10             ` Ihor Radchenko
2022-06-17 11:03               ` Eli Zaretskii
2022-06-17  5:23       ` Tree-sitter integration on feature/tree-sitter Eli Zaretskii
2022-06-17 10:40         ` Ihor Radchenko
2022-06-17 11:42           ` Exposing buffer text modifications to Lisp (was: Tree-sitter integration on feature/tree-sitter) Eli Zaretskii
2022-06-18  5:52             ` Ihor Radchenko
2022-06-18  7:01               ` Eli Zaretskii
2022-06-18  7:23                 ` Ihor Radchenko
2022-06-18  7:44                   ` Eli Zaretskii
2022-06-18  8:13                     ` Ihor Radchenko
2022-06-18  8:47                       ` Exposing buffer text modifications to Lisp Eli Zaretskii
2022-06-20 11:58                         ` Ihor Radchenko
2022-06-20 12:32                           ` Eli Zaretskii
2022-06-20 14:14                             ` Stefan Kangas
2022-06-21  3:56                               ` Ihor Radchenko
2022-06-21  4:36                             ` Ihor Radchenko
2022-06-21 12:27                               ` Eli Zaretskii
2022-06-25  4:47                                 ` Optimizing performance of buffer markers (was: Exposing buffer text modifications to Lisp) Ihor Radchenko
2022-06-25  8:29                                   ` Optimizing performance of buffer markers Stefan Monnier
2022-06-25  8:44                                     ` Eli Zaretskii
2022-06-25  9:07                                       ` Stefan Monnier
2022-06-25  9:20                                         ` Eli Zaretskii
2022-06-25  9:27                                           ` Stefan Monnier
2022-06-25  9:47                                         ` Ihor Radchenko
2022-06-25  9:53                                           ` Stefan Monnier
2022-06-26 10:32                                   ` Robert Pluim
2022-06-22 15:45                             ` Exposing buffer text modifications to Lisp Basil L. Contovounesios
2022-06-22 16:13                               ` Eli Zaretskii
2022-06-25  4:54                                 ` Ihor Radchenko [this message]
2022-06-25  5:46                                   ` Eli Zaretskii
2022-06-29 12:24                                     ` Ihor Radchenko
2022-06-20 14:33                           ` Alan Mackenzie
2022-06-21  3:58                             ` Ihor Radchenko
2022-06-17  6:15     ` Tree-sitter integration on feature/tree-sitter Eli Zaretskii
2022-06-17  7:17       ` Yuan Fu
2022-06-17 10:37         ` Eli Zaretskii
2022-06-18  0:14           ` Yuan Fu
2022-06-18  6:22             ` Eli Zaretskii
2022-06-18  8:25               ` Yuan Fu
2022-06-18  8:50                 ` Eli Zaretskii
2022-06-18 20:07                   ` Yuan Fu
2022-06-19  5:39                     ` Eli Zaretskii
2022-06-20  3:00                       ` Yuan Fu
2022-06-20 11:44                         ` Eli Zaretskii
2022-06-20 20:01                           ` Yuan Fu
2022-06-21  2:26                             ` Eli Zaretskii
2022-06-21  4:39                               ` Yuan Fu
2022-06-21 10:18                                 ` Eli Zaretskii
2022-06-22  0:34                                   ` Yuan Fu
2022-06-17 11:06     ` Jostein Kjønigsen
2022-06-18  0:28       ` Yuan Fu
2022-06-18 20:57         ` Jostein Kjønigsen

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