From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: cc-mode fontification feels random Date: Thu, 10 Jun 2021 20:44:38 +0300 Message-ID: <83bl8dbomx.fsf@gnu.org> References: <83o8cge4lg.fsf@gnu.org> <62e438b5-d27f-1d3c-69c6-11fe29a76d74@dancol.org> <83fsxsdxhu.fsf@gnu.org> <83pmwudgw3.fsf@gnu.org> <83k0n2cjg5.fsf@gnu.org> <83im2lbqmv.fsf@gnu.org> <179f6e4fa40.2816.cc5b3318d7e9908e2c46732289705cb0@dancol.org> <83fsxpbpn9.fsf@gnu.org> <8735tp8vo7.fsf@telefonica.net> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9449"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: =?iso-8859-1?Q?=D3scar?= Fuentes Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Jun 10 19:46:33 2021 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 1lrOlF-0002Jm-4A for ged-emacs-devel@m.gmane-mx.org; Thu, 10 Jun 2021 19:46:33 +0200 Original-Received: from localhost ([::1]:40670 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lrOlE-0007eG-3S for ged-emacs-devel@m.gmane-mx.org; Thu, 10 Jun 2021 13:46:32 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55224) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lrOjj-000627-4W for emacs-devel@gnu.org; Thu, 10 Jun 2021 13:45:00 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:32866) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lrOjh-0003jK-SA; Thu, 10 Jun 2021 13:44:58 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1628 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lrOjh-0002oL-20; Thu, 10 Jun 2021 13:44:57 -0400 In-Reply-To: <8735tp8vo7.fsf@telefonica.net> (message from =?iso-8859-1?Q?=D3scar?= Fuentes on Thu, 10 Jun 2021 19:40:56 +0200) 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:270665 Archived-At: > From: Óscar Fuentes > Date: Thu, 10 Jun 2021 19:40:56 +0200 > > Eli Zaretskii writes: > > >> From: Daniel Colascione > >> Date: Thu, 10 Jun 2021 10:07:52 -0700 > >> Cc: rudalics@gmx.at, monnier@iro.umontreal.ca, rms@gnu.org, emacs-devel@gnu.org > >> > >> > Then I suggest to set it to 2 by default. > >> > >> Performance is reasonable most of the time. > > > > Not IME. > > But your use case is not representative, isn't it? Using a debug build > with checks enabled have a large impact on performance. See my other message: you have an inaccurate impression about my use cases. And I don't really agree that debug builds are uninteresting: if they are so slow, it means our fontification is borderline even on relatively fast machines. > BTW, from time to time I use a 2011 netbook with an Atom CPU and have no > complaints while working with 30k lines-long machine-generated (read: > code-dense, comment-sparse, almost no withespace) C++ files. Exactly. So why cannot we have the same level of performance, and need to rely on compiler optimizations even on a fast i7?