From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.devel Subject: Re: New optimisations for long raw strings in C++ Mode. Date: Tue, 9 Aug 2022 16:05:40 +0000 Message-ID: References: <87r11s2p7f.fsf@gnus.org> <87fsi818ju.fsf@gnus.org> <87wnbkyuhe.fsf@gnus.org> <83sfm8vxht.fsf@gnu.org> <87k07hxwe9.fsf@gnus.org> <87fsi5xw9l.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28350"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Eli Zaretskii , emacs-devel@gnu.org To: Lars Ingebrigtsen Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Aug 09 18:26:46 2022 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 1oLS45-0007Ep-S4 for ged-emacs-devel@m.gmane-mx.org; Tue, 09 Aug 2022 18:26:45 +0200 Original-Received: from localhost ([::1]:60922 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oLS44-0007Ot-Ea for ged-emacs-devel@m.gmane-mx.org; Tue, 09 Aug 2022 12:26:44 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:34892) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oLRjl-0002Qu-Ty for emacs-devel@gnu.org; Tue, 09 Aug 2022 12:05:46 -0400 Original-Received: from colin.muc.de ([193.149.48.1]:52866 helo=mail.muc.de) by eggs.gnu.org with smtp (Exim 4.90_1) (envelope-from ) id 1oLRjj-0000HY-QY for emacs-devel@gnu.org; Tue, 09 Aug 2022 12:05:45 -0400 Original-Received: (qmail 76234 invoked by uid 3782); 9 Aug 2022 16:05:41 -0000 Original-Received: from acm.muc.de (p4fe156e6.dip0.t-ipconnect.de [79.225.86.230]) (using STARTTLS) by colin.muc.de (tmda-ofmipd) with ESMTP; Tue, 09 Aug 2022 18:05:41 +0200 Original-Received: (qmail 9305 invoked by uid 1000); 9 Aug 2022 16:05:40 -0000 Content-Disposition: inline In-Reply-To: <87fsi5xw9l.fsf@gnus.org> X-Submission-Agent: TMDA/1.3.x (Ph3nix) X-Primary-Address: acm@muc.de Received-SPF: pass client-ip=193.149.48.1; envelope-from=acm@muc.de; helo=mail.muc.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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:293317 Archived-At: Hello, Lars. On Tue, Aug 09, 2022 at 17:38:14 +0200, Lars Ingebrigtsen wrote: > Lars Ingebrigtsen writes: > > I can confirm that this is fast now; thanks. :-) > But opening the resulting file with "emacs -Q" and then doing a `M->' > now hangs Emacs, which it didn't use to do, I think? If you do (setq long-line-threshold nil), M-> is fast. Only when you omit it does Emacs hang. Hmm. It's meant to be the other way around, isn't it? ;-) > (But `C-g' allows breaking and Emacs is responsive afterwards, so it's > not that serious.) What isn't so clever is that with a long line of y's, C-p, C-n, M-v, C-v are slower than inserting the long line. The profiler on M-v indicated that scroll-down-command was taking 86% of the time. -- Alan Mackenzie (Nuremberg, Germany).