From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Optimizing performance of buffer markers Date: Sat, 25 Jun 2022 05:07:59 -0400 Message-ID: References: <2c2746e5f2558a87e8eab6f0914264a020173a9d.camel@pm.me> <27630AA3-8026-4E24-8852-ACCD9325B99D@gmail.com> <0E9E702B-B07C-4794-8498-29B9320E14CC@gmail.com> <871qvorqvv.fsf@localhost> <83tu8jq2vl.fsf@gnu.org> <87sfo37etn.fsf@localhost> <834k0jplcm.fsf@gnu.org> <878rpuwm9w.fsf@localhost> <83mteao3oj.fsf@gnu.org> <87edzmv3i0.fsf@localhost> <83k09eo1p5.fsf@gnu.org> <878rpuv17q.fsf@localhost> <83fsk2nyrm.fsf@gnu.org> <878rpr4kd4.fsf@localhost> <8335fzms6q.fsf@gnu.org> <87wndar5tt.fsf@localhost> <831qvikxqo.fsf@gnu.org> <87edzdwdqt.fsf@localhost> <83h749b099.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="14173"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: yantar92@gmail.com, casouri@gmail.com, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Jun 25 11:10:01 2022 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1o51nk-0003Uc-Hv for ged-emacs-devel@m.gmane-mx.org; Sat, 25 Jun 2022 11:10:00 +0200 Original-Received: from localhost ([::1]:35836 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o51nj-0000Em-2M for ged-emacs-devel@m.gmane-mx.org; Sat, 25 Jun 2022 05:09:59 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41892) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o51lx-0007qZ-W3 for emacs-devel@gnu.org; Sat, 25 Jun 2022 05:08:10 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:8840) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o51lv-0001zX-5i; Sat, 25 Jun 2022 05:08:08 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 4407B1001CB; Sat, 25 Jun 2022 05:08:05 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 5D3E810012C; Sat, 25 Jun 2022 05:08:02 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1656148082; bh=zg7ozde10XR4+u8XZBm7lDihy8pfgPhFiiGD22fcUA8=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=O1Hd86AlIDaPtnc8oJSKspBZ2pmXw9xbHubvuLiEnGeR2g64AHY1HXiU0izW/SW2G apPHOegLX3nyeN5ehIJKxTaVEOoyGAsh2dkGTzRGCYaETbSgCT9ZuH17+jUtQclY0r LmoXqKDmV16tSEHuZkTyeYiD2Jc1Z+PNFqUAxZY18tsMwGYqB3nUi8oFR2iZzBOXQK cFypG6RPavCR9ETL62w9DydTdf1Hsa1pRdZ//amaWi6KRzt3HIbXKMeZwNnCT+lEyk Gu3RdyyFtogsfYypzePa627tRDyFYq5dkn9BgRdp9U6bcnAiVqAahi/7P7NvtIz7qv 8K0GTxZTVnsPw== Original-Received: from alfajor (smb-adp02.hotspot.hub-one.net [213.174.99.150]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 80CC312067C; Sat, 25 Jun 2022 05:08:01 -0400 (EDT) In-Reply-To: <83h749b099.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 25 Jun 2022 11:44:34 +0300") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:291590 Archived-At: > Landing that branch is indeed a very Good Thing, but AFAIU this > discussion revealed that Org adds quite a few markers of its own when > it parses the buffer, because it wants to track the positions of some > syntactic elements of the buffer. That's quite unusual, tho, and I suspect that Org's code could be changed to use overlays instead (after all, we could define an "efficient marker" as (make-overlay POS POS)). Stefan