From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.devel Subject: Re: emacs rendering comparisson between emacs23 and emacs26.3 Date: Tue, 7 Apr 2020 23:05:04 +0300 Message-ID: References: <054393f3-3873-ab6e-b325-0eca354d8838@gmx.at> <20200403174757.GA8266@ACM> <20200404104553.GA5329@ACM> <07fe3b69-3ab2-3173-0696-cb17809e2b91@gmx.at> <83blo7v68b.fsf@gnu.org> <1845d7aa-9ae4-3d95-6a30-c7b1d8d8adec@gmx.at> <83a73qt6zs.fsf@gnu.org> <97c4254e-ff43-8402-3645-f713c408c245@gmx.at> <83y2r9syby.fsf@gnu.org> <83v9mdssqx.fsf@gnu.org> <679ab47b-6e3e-65e6-f955-be58d59ed092@yandex.ru> <83sghhss8v.fsf@gnu.org> <671b5b41-663d-5ab9-f022-dc6c5ce54dd0@yandex.ru> <83r1x1sqkx.fsf@gnu.org> <83lfn9s63n.fsf@gnu.org> <83h7xvqsgc.fsf@gnu.org> <90749329-ccb1-f96e-29c0-b4ecbb81d1d4@yandex.ru> <837dyrqews.fsf@gnu.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="ciao.gmane.io:159.69.161.202"; logging-data="1285"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 Cc: rudalics@gmx.at, rrandresf@gmail.com, rms@gnu.org, acm@muc.de, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Apr 07 22:06:46 2020 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 1jLuUg-0000Gz-34 for ged-emacs-devel@m.gmane-mx.org; Tue, 07 Apr 2020 22:06:46 +0200 Original-Received: from localhost ([::1]:52784 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jLuUd-00088N-4r for ged-emacs-devel@m.gmane-mx.org; Tue, 07 Apr 2020 16:06:43 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54603) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jLuTN-0007PH-T5 for emacs-devel@gnu.org; Tue, 07 Apr 2020 16:05:35 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jLuTL-0003rN-OT for emacs-devel@gnu.org; Tue, 07 Apr 2020 16:05:24 -0400 Original-Received: from mail-wr1-x431.google.com ([2a00:1450:4864:20::431]:45781) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jLuT7-0003cq-3P; Tue, 07 Apr 2020 16:05:09 -0400 Original-Received: by mail-wr1-x431.google.com with SMTP id v5so5263874wrp.12; Tue, 07 Apr 2020 13:05:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=5hAZPaM//VEEDTWt2sUtBSq6VXGnBdTDGMhMQN7p8d0=; b=QUlZrEphsXUP4cFZ5LgWNKKVTDelKUlISuiQ8Y/ySRzxZqFPQKDMPvC3eivqh6l5bQ X1IFs/encwdampolQ7Wu8BtqF/wr+SKFQX00S4AGHhsXmsXMQxOlOIFMJUK7kbF/A5gH /gRV6Qt/drO6pMLh0+tk6SAq/iZuYIGCAPI8RRranY5r2Ng1NmMAxNPOdERl3Ay2MVJI igQYR4YlAqsR3OwkMZM1x9oDzZ0DZNA42nArwKatwZm95X9si0qfEsKFNK+6RUOY5ZZU O/n6r8Lwxtsq8MkXLV1VVjzKyG14Vm7T5rH2wnOhbbh3uIpuIf+wvoFJLRD12OdGkoLT bzAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:to:cc:references:from:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=5hAZPaM//VEEDTWt2sUtBSq6VXGnBdTDGMhMQN7p8d0=; b=s79U/kde1e8tu0hQ8MizLzd3wAS92X6VsVhuYf4lDpzUwW03jzb76FBPvMgoQCPmWW +Bssy7A5AYi60caPTrmOiMpLE6NteQceYEyBYRQV3WhAnifb7NmyCclgv224dZdVAdPc OoWWZhEnbRIUx/LntuCQV7mdnswQZo1HbYW4pYBVwjwLihm1HqG6UWAKHEz303GDC2Ft S3Lt+TeSF0TWcJD+2bjxlrZAFsbTCZsb3KSa2xo/b8kD/0cTE//FtFb5IlKiQTSE7mOc EtbVLW9YF8kXxpe/xxe5+0J9nuNC/yko+w6U3+3XA/ZOGgxYMKcaQGbz2CIOdDHr3NaZ aInA== X-Gm-Message-State: AGi0PuZ+IpC6lb5HmbJcwwmXarfT8rajumni1am7o0LzBBKZiJHStu2I aPenPS7cY1jf/xuuqT4u7ZE= X-Google-Smtp-Source: APiQypK/8CFQsqu9E0Rh10GpmzIKSsjU9Y4eG9DzcQ7f5RwlgTpma/tR1pjoCXAfO9BEZfoo4PquQQ== X-Received: by 2002:a5d:6a10:: with SMTP id m16mr4828875wru.371.1586289907653; Tue, 07 Apr 2020 13:05:07 -0700 (PDT) Original-Received: from [192.168.0.2] ([66.205.73.129]) by smtp.googlemail.com with ESMTPSA id y22sm5172508wma.0.2020.04.07.13.05.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Apr 2020 13:05:07 -0700 (PDT) In-Reply-To: <837dyrqews.fsf@gnu.org> Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::431 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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:246624 Archived-At: On 07.04.2020 22:22, Eli Zaretskii wrote: >> and are likely fixable without significant redesign. > > Unfortunately, I'm not as optimistic as you on that one. In any case, s-p-f is unlikely to help there. ¯\_(ツ)_/¯ > So here's the first bug report about a random slowness in CC Mode: Thank you. > . visit src/w32.c on the emacs-27 branch and go to line 8747 > . C-e DEL -- this deletes the last 'e' of "else" > . the following line gets immediately fontified as a function name > . type 'e' -- then watch how the fontification of the next line to > its original face takes almost 1 sec -- this is the problem I can and can't reproduce this at the same time. Meaning, I do see "fontification of the next line to its original face" take some time. But if I don't wait for it to turn black again and continue typing, nothing bad happens: Emacs continues reacting to input just as promptly, and the next line turns black soon enough. And if I type e.g. 'e RET', or 'e SPC', the next line turns black seemingly instantly. > FTR, this is in Emacs 27.0.90 built with -Og, but a -O2 compilation of > Emacs 26.3 takes only slightly less time in this case. 'emacs -Q' and a '-Og -g3' build of 27.0.90 here.