From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.bugs Subject: bug#56682: Fix the long lines font locking related slowdowns Date: Fri, 5 Aug 2022 15:21:24 +0300 Message-ID: <2221c152-b4ec-dc46-0446-2a05db6196ab@yandex.ru> References: <8c7321f2f3ec1ef81af9@heytings.org> <02e83b0e-1b5c-fe75-6e59-1f8ddff82d37@yandex.ru> <96f28fd8-6744-1925-0631-0095099362dd@yandex.ru> <74ddc877f1b74ab56d18@heytings.org> <83r11y5a9d.fsf@gnu.org> <83h72t5y2d.fsf@gnu.org> <83pmhg4le6.fsf@gnu.org> <83r11v1a9w.fsf@gnu.org> <83bksz0xgw.fsf@gnu.org> <92da07bd02f138b655cb@heytings.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6189"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Cc: 56682@debbugs.gnu.org, Eli Zaretskii To: Gregory Heytings , Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 05 14:24:36 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 1oJwNY-0001SC-1U for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Aug 2022 14:24:36 +0200 Original-Received: from localhost ([::1]:43920 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oJwNX-0003yg-5H for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Aug 2022 08:24:35 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49690) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oJwL4-0001a1-CA for bug-gnu-emacs@gnu.org; Fri, 05 Aug 2022 08:22:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:38570) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oJwL4-0006E0-2c for bug-gnu-emacs@gnu.org; Fri, 05 Aug 2022 08:22:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oJwL3-0008L0-UJ for bug-gnu-emacs@gnu.org; Fri, 05 Aug 2022 08:22:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Dmitry Gutov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 05 Aug 2022 12:22:01 +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=B56682.165970209631999 (code B ref 56682); Fri, 05 Aug 2022 12:22:01 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 5 Aug 2022 12:21:36 +0000 Original-Received: from localhost ([127.0.0.1]:56549 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oJwKe-0008K3-42 for submit@debbugs.gnu.org; Fri, 05 Aug 2022 08:21:36 -0400 Original-Received: from mail-wr1-f41.google.com ([209.85.221.41]:42746) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oJwKc-0008Jq-3H for 56682@debbugs.gnu.org; Fri, 05 Aug 2022 08:21:34 -0400 Original-Received: by mail-wr1-f41.google.com with SMTP id z12so3043014wrs.9 for <56682@debbugs.gnu.org>; Fri, 05 Aug 2022 05:21:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=B5RvwkawBdk5P3Q1K+ma0upTWIKfuy7KxMIUMyzbb0I=; b=nnEQGN9IKp7nkTfCWpZdFVFtCzrCmRrsh/+QFqquxkzv801bc9/xrfpKyc2kTacLQh bt8lG2CXj3aHL9lmoXwqymq+sHLIwvPw7aDZW17hXSjoSyA8cdQBI+28gLxjN3Wd0zjr hGMTfA5Eo3ylRbCXGmVEMZtpNJNgGD2waKmmvjCZ5bf1QJ8OYsS8Q1OlX0YCzD+GQMkU YlDp8jZzH33HLpZcR23hjqZgRC8Go/hGUDpYi4SrYEGTNcb95ZOtGlaj/T2fWubE4XQ2 2MQ9MQWbyMo7AEnpVUOpmYkfZf6F6Vq+mkK+yZp2OzRxRDCnEuJmi2qZ3ZF9a+0HzgBl Gu/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:message-id:date:mime-version:user-agent :subject:content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=B5RvwkawBdk5P3Q1K+ma0upTWIKfuy7KxMIUMyzbb0I=; b=pQUjdcgXE3INZOMIDPMLTB6vfhN38xM4vwLbsm5G7evL20SLnfOTHJD0cffhWXg2mp lmFITgsQaOmZk/BgqAoeRMRW92AtMV1l5w5S18iCmIHIbAzCHRwEo4RUXArvKA6zCaKW 9JQnYjaVRumB3oYFaAZQeoyQBAIIysFeFsCWCwlRUWJ2MEhanbHHr9cTNr6MN0zse8fQ 1ErieNc2uel/3pj5BS/L58sUHJMMien0VWrtzjvg2XlK1mfzhYhGcvy1XDPgyKWn4/yh HCwug0vqbmSwUeE6s53IWpVhc2zAxgo1m6k3VMHyUTfCWQpkqbviBE4xDyp7kIs7kpLI BRXw== X-Gm-Message-State: ACgBeo2xecs0QmOsZtsi9DxsYTtcB5+HKXZvGx9pca6dkMGA3J3DOo45 EqSeRMqh4WeNbd4IVuvizIRrCI+yMEk= X-Google-Smtp-Source: AA6agR45lrNZdUIgx+5WE5MjdrC3h8ADsb798lT/gJmcrGHmoWZn9ffnvmbOowl/J+aKmW6Xgp+EmQ== X-Received: by 2002:a05:6000:1548:b0:21d:acfc:29f5 with SMTP id 8-20020a056000154800b0021dacfc29f5mr3976604wry.520.1659702088619; Fri, 05 Aug 2022 05:21:28 -0700 (PDT) Original-Received: from [192.168.0.6] ([46.251.119.176]) by smtp.googlemail.com with ESMTPSA id a18-20020a05600c349200b003a35ec4bf4fsm4594342wmq.20.2022.08.05.05.21.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 05 Aug 2022 05:21:28 -0700 (PDT) Content-Language: en-US In-Reply-To: <92da07bd02f138b655cb@heytings.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:238893 Archived-At: On 05.08.2022 15:16, Gregory Heytings wrote: > >>> If and when it is solved, we could revisit this issue. >> >> The locked narrowing currently in effect makes it impossible to >> investigate this problem or improve the behavior :-( >> > > How so?  It is fully backward compatible, just (setq long-line-threshold > nil).  If what you want is only to remove the locked narrowing, comment > out the relevant line in xdisp.c. That brings back the performance problems in redisplay, which have a more pronounced effect, overshadowing both issues and potential improvements in font-lock.