From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings Newsgroups: gmane.emacs.bugs Subject: bug#56682: Fix the long lines font locking related slowdowns Date: Thu, 04 Aug 2022 01:30:54 +0000 Message-ID: <3d639ea126dc3cfd5658@heytings.org> 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> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5964"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 56682@debbugs.gnu.org, Eli Zaretskii , Dmitry Gutov To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Aug 04 03:31:17 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 1oJPhj-0001LP-P4 for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 04 Aug 2022 03:31:15 +0200 Original-Received: from localhost ([::1]:34826 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oJPhi-0000u7-PD for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 03 Aug 2022 21:31:14 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36342) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oJPhW-0000tC-H7 for bug-gnu-emacs@gnu.org; Wed, 03 Aug 2022 21:31:04 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:60819) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oJPhW-0006co-6R for bug-gnu-emacs@gnu.org; Wed, 03 Aug 2022 21:31:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oJPhW-0006eS-2b for bug-gnu-emacs@gnu.org; Wed, 03 Aug 2022 21:31:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gregory Heytings Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 04 Aug 2022 01:31:02 +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=B56682.165957665725559 (code B ref 56682); Thu, 04 Aug 2022 01:31:02 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 4 Aug 2022 01:30:57 +0000 Original-Received: from localhost ([127.0.0.1]:50568 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oJPhR-0006eA-Gv for submit@debbugs.gnu.org; Wed, 03 Aug 2022 21:30:57 -0400 Original-Received: from heytings.org ([95.142.160.155]:37812) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oJPhP-0006e2-LJ for 56682@debbugs.gnu.org; Wed, 03 Aug 2022 21:30:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1659576655; bh=6dVD3+5AxrN0cOZBpK5CKxPNaLsRCM6JW4FdFqFXcTo=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=P2Aulv52XCXjUzfOJeFprQh9OEMLeR2kD7PVStiH1LSeoYeCmMfEZUv3C1x80fXWv JX+wetvzB8wzw1iQiZREofVrXsRFklMPAE6bj5WzbGBzeZ3Ns4EVciyFw/Zd+bZKSJ nO5e/0mLEagOAFs8up+/eX30zlbyH8uPQCX7oPy1akSaHe+j+Ng1S8JEopkXCy0du4 w6RsK7+IzlXzz5CRg4VRzw0AnzADVCrz3L/6f63ol6KgEIyGqD8hXSeMH4JOxw1aEX cSX/7N1XaGyg9i1D0BofCjuCxhhMVu62n5AUdAXrnilcCfnu5nJ3Eg5pqi1cuHkqZE CZs9VHedsoVmg== In-Reply-To: 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:238666 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, > To make syntax-ppss faster, if possible? Is that not a sensible thing to do?