From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#56682: Fix the long lines font locking related slowdowns Date: Wed, 03 Aug 2022 18:43:35 -0400 Message-ID: References: <83v8rf5894.fsf@gnu.org> <65cb7c73fd4a999cca00@heytings.org> <8c7321f2f3400a5db9be@heytings.org> <8c7321f2f388e5343475@heytings.org> <6ea376f6-d503-06d8-6d83-50c52b695394@yandex.ru> <8c7321f2f3ac52bfee4b@heytings.org> <8c7321f2f3ec1ef81af9@heytings.org> <74ddc877f18a8db624e9@heytings.org> <5f6988c781ff83d58df1@heytings.org> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5114"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 56682@debbugs.gnu.org, Eli Zaretskii , Dmitry Gutov To: Gregory Heytings Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Aug 04 00:44:18 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1oJN69-0001Bu-OH for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 04 Aug 2022 00:44:17 +0200 Original-Received: from localhost ([::1]:47870 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oJN68-0005vD-Oj for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 03 Aug 2022 18:44:16 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41754) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oJN5u-0005v2-Cb for bug-gnu-emacs@gnu.org; Wed, 03 Aug 2022 18:44:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:60525) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oJN5u-0004nR-44 for bug-gnu-emacs@gnu.org; Wed, 03 Aug 2022 18:44:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oJN5t-0008QL-Ny for bug-gnu-emacs@gnu.org; Wed, 03 Aug 2022 18:44:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 03 Aug 2022 22:44:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 56682 X-GNU-PR-Package: emacs Original-Received: via spool by 56682-submit@debbugs.gnu.org id=B56682.165956663232356 (code B ref 56682); Wed, 03 Aug 2022 22:44:01 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 3 Aug 2022 22:43:52 +0000 Original-Received: from localhost ([127.0.0.1]:50274 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oJN5j-0008Po-Oe for submit@debbugs.gnu.org; Wed, 03 Aug 2022 18:43:51 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:41626) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oJN5h-0008Pb-Uo for 56682@debbugs.gnu.org; Wed, 03 Aug 2022 18:43:50 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id A44C580012; Wed, 3 Aug 2022 18:43:44 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id DC57D804E6; Wed, 3 Aug 2022 18:43:38 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1659566618; bh=LLj9NhSQS9OX4m6llvTrAL9u1ovbo0EzsLZxayzIIdo=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=O/67jk4WWkHN/h6mPlLoyGAzIFUoo6nPJjH0tcQ2adwRjWpgNhwH86rbejWWy8VbW CDRQ5lLFAS1ILVPnlwm8GPxELhzrL2b0oqOwaJ2U5ThpIPlAlKRZaS1WZE4qE0PZLs M0hIb12Wr8l9VlaMN7/HaB+jGghALBBZ4G0EkDgEeHJjE4Im9Hf3oyKfVZzb+E8X/7 Rk01uaeYFtQaG3pfVio8vi97pPxZFsap/1PQO8gykJPg1TXaactpkp2oFffeubQplM O0la1Tvu0M3F1BkwODpGEcJgnFvzwjlQwj3qlqIoPMQYWAEE0qJSPqvUD7lm8jZ8q9 4rXsLpZU19VgQ== Original-Received: from milanesa (unknown [46.44.221.102]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id E12741202CE; Wed, 3 Aug 2022 18:43:37 -0400 (EDT) In-Reply-To: <5f6988c781ff83d58df1@heytings.org> (Gregory Heytings's message of "Wed, 03 Aug 2022 21:42:25 +0000") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:238657 Archived-At: >>> The general idea is that syntax-ppss is currently an order of magnitude >>> too slow for "too large" buffers. >> And that it can be almost another order of magnitude worse in some major >> modes because of `syntax-propertize`. > That's possible, I don't know. I might take a look at that later. But note > that your reactions are not exactly encouraging me to do so. I don't see any need to look into it, so don't waste your time there, because whether what I said above is true or not is mostly irrelevant (e.g. what would you do with that info anyway?). Stefan