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: Fri, 29 Jul 2022 15:35:23 +0000 Message-ID: References: <837d46mjen.fsf@gnu.org> <174616cd5c33bfc14b1f@heytings.org> <837d44jr4p.fsf@gnu.org> <83bktghrn0.fsf@gnu.org> <8a3eaeef010995a5da8d@heytings.org> <837d40ds09.fsf@gnu.org> <83zggwcby5.fsf@gnu.org> <83o7xccagi.fsf@gnu.org> <831qu7daxb.fsf@gnu.org> <83sfmnb7yg.fsf@gnu.org> <837d3ybh5z.fsf@gnu.org> <136c4fe0fc74196714aa@heytings.org> <83pmhp89ov.fsf@gnu.org> <136c4fe0fc39573addc9@heytings.org> <83k07x8738.fsf@gnu.org> <136c4fe0fcdf00ef9a11@heytings.org> <83h73183r7.fsf@gnu.org> <136c4fe0fc0fceb0d752@heytings.org> <838roc8ka7.fsf@gnu.org> <83tu706obt.fsf@gnu.org> <83mtcs6mwk.fsf@gnu.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="36738"; mail-complaints-to="usenet@ciao.gmane.io" Cc: gerd.moellmann@gmail.com, 56682@debbugs.gnu.org, larsi@gnus.org, monnier@iro.umontreal.ca To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 29 17:36:56 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 1oHS2p-0009Ky-IA for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 29 Jul 2022 17:36:56 +0200 Original-Received: from localhost ([::1]:41958 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oHS2o-0005VX-Gw for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 29 Jul 2022 11:36:54 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48126) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oHS1y-0005SN-WA for bug-gnu-emacs@gnu.org; Fri, 29 Jul 2022 11:36:14 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:43506) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oHS1y-0005e6-Li for bug-gnu-emacs@gnu.org; Fri, 29 Jul 2022 11:36:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oHS1y-0001YG-I0 for bug-gnu-emacs@gnu.org; Fri, 29 Jul 2022 11:36:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gregory Heytings Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 29 Jul 2022 15:36:02 +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=B56682.16591089265908 (code B ref 56682); Fri, 29 Jul 2022 15:36:02 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 29 Jul 2022 15:35:26 +0000 Original-Received: from localhost ([127.0.0.1]:33254 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oHS1O-0001XD-05 for submit@debbugs.gnu.org; Fri, 29 Jul 2022 11:35:26 -0400 Original-Received: from heytings.org ([95.142.160.155]:57838) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oHS1M-0001X6-Kt for 56682@debbugs.gnu.org; Fri, 29 Jul 2022 11:35:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1659108923; bh=gPoP0N+VvKLSZf0x2BsqUhNwPf84wnJ9lVu3rh2ZbYQ=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=4u8ZID/3XCvOhFCXO0B4yAM3cYGWDN7xljmngaxM1IuBX6XbRaIKzC5io0k/e5Ycf /6NK8gsMcnARMM3u3gW4V5q0zumwPorYTclYiUVAuvpRIvUvCB2BZmkCn6F7FTJSo/ JdnUo9oCTVDqh4Zv7QT4fo5jXsJN7klQiZY9VHcTBi7P47yz5WYwz4tKxGkZ5wDaFL /VQfrq4+ptqWliT3uCWC3kwarhdhfDKrM12YjaPYduBq1ND9pwAsL9WFZjkYOKBQnV 2NqbtSzE+WijPP4EvO8SMIv++FiTZ2ZWkrg/TWMhZAvJraKpS17JjGhfvQphWKkLUs 0/vpx4LUmsLkw== In-Reply-To: <83mtcs6mwk.fsf@gnu.org> 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:238191 Archived-At: > > And another thing: the condition on it->narrowed_begv being non-zero > means that as long as we are close enough to the beginning of a buffer, > we don't restrict fontification-functions from going as far as they want > into the buffer. > > So I think the condition should be the long_line_optimizations_p flag of > the buffer, and we should narrow the buffer even when we are at BOB, to > prevent fontification-functions from going too far. > That's correct, indeed, thanks. Now fixed on master.