From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.devel Subject: Re: emacs rendering comparisson between emacs23 and emacs26.3 Date: Thu, 26 Mar 2020 19:31:28 +0000 Message-ID: <20200326193128.GC14092@ACM> References: <86tv2h2vww.fsf@gmail.com> <20200322123818.GB32470@ACM> <87eetk5swm.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="16981"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/1.10.1 (2018-07-13) Cc: emacs-devel@gnu.org To: Richard Stallman Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Mar 26 20:32:15 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 1jHYEh-0004H5-1r for ged-emacs-devel@m.gmane-mx.org; Thu, 26 Mar 2020 20:32:15 +0100 Original-Received: from localhost ([::1]:58024 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jHYEg-0003xT-1m for ged-emacs-devel@m.gmane-mx.org; Thu, 26 Mar 2020 15:32:14 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:57697) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jHYE1-0003YI-Ty for emacs-devel@gnu.org; Thu, 26 Mar 2020 15:31:35 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jHYE0-0006CE-Hl for emacs-devel@gnu.org; Thu, 26 Mar 2020 15:31:33 -0400 Original-Received: from colin.muc.de ([193.149.48.1]:35622 helo=mail.muc.de) by eggs.gnu.org with smtp (Exim 4.71) (envelope-from ) id 1jHYE0-0006BK-8R for emacs-devel@gnu.org; Thu, 26 Mar 2020 15:31:32 -0400 Original-Received: (qmail 79328 invoked by uid 3782); 26 Mar 2020 19:31:30 -0000 Original-Received: from acm.muc.de (p4FE15CB0.dip0.t-ipconnect.de [79.225.92.176]) by colin.muc.de (tmda-ofmipd) with ESMTP; Thu, 26 Mar 2020 20:31:27 +0100 Original-Received: (qmail 14251 invoked by uid 1000); 26 Mar 2020 19:31:28 -0000 Content-Disposition: inline In-Reply-To: X-Delivery-Agent: TMDA/1.1.12 (Macallan) X-Primary-Address: acm@muc.de X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 193.149.48.1 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:245818 Archived-At: Hello, Richard. On Sun, Mar 22, 2020 at 22:51:39 -0400, Richard Stallman wrote: > [[[ To any NSA and FBI agents reading my email: please consider ]]] > [[[ whether defending the US Constitution against all enemies, ]]] > [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > > > Still, an increase of ~75% in processing time over the best part of a > > > decade isn't that bad. Surely? Certainly not when compared with the > > > increase in available computing power. > There has been no increase in computing power in the Free World. > I expect that Amin chooses these older machines > > Just as a data point, my main machine is a ThinkPad released in 2008 > > with a Core 2 Duo processor, which is not nearly as fast as the newer > > Core i5/i7 processors found in more recent machines since. > for the same reason I choose them: the FSF recommends them, because newer > processors have back doors. Intel processors newer than that contain > the "Management Engine" back door and can't start up without it. That's a good point. Presumably processors without these back doors are difficult to come by nowadays. > So please, everyone, take care to maintain good performance on these > older machines. > Is it possible, to restore most of the lost peformance by deactivating > some new features? The only way at the moment (for CC Mode) is to change font-lock-maximum-decoration from t to 2. Most of the increased processing comes from fixing bugs rather than adding new features. Keeping up with, in particular, the latest C++ standard (which seems to appear every three years) is a challenge, as they steadily make shallow syntactic analysis more and more difficult. > -- > Dr Richard Stallman > Chief GNUisance of the GNU Project (https://gnu.org) > Founder, Free Software Foundation (https://fsf.org) > Internet Hall-of-Famer (https://internethalloffame.org) -- Alan Mackenzie (Nuremberg, Germany).