From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Winston Newsgroups: gmane.emacs.help Subject: Re: 25.3 => 26.1, C-mode, slow again Date: Mon, 06 Aug 2018 15:31:35 -0400 Organization: Aioe.org NNTP Server Message-ID: References: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1533584010 23164 195.159.176.226 (6 Aug 2018 19:33:30 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 6 Aug 2018 19:33:30 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (berkeley-unix) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Aug 06 21:33:26 2018 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fmlFu-0005wy-3R for geh-help-gnu-emacs@m.gmane.org; Mon, 06 Aug 2018 21:33:26 +0200 Original-Received: from localhost ([::1]:35945 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fmlI0-0006x6-O8 for geh-help-gnu-emacs@m.gmane.org; Mon, 06 Aug 2018 15:35:36 -0400 Original-Path: usenet.stanford.edu!goblin1!goblin2!goblin3!goblin.stu.neva.ru!news.roellig-ltd.de!open-news-network.org!weretis.net!feeder4.news.weretis.net!news.mixmin.net!aioe.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 31 Original-NNTP-Posting-Host: HiP9CM4zZKmgWNAsVK99/w.user.gioia.aioe.org Original-X-Complaints-To: abuse@aioe.org X-Notice: Filtered by postfilter v. 0.8.3 Mail-Copies-To: never Cancel-Lock: sha1:uovYXfIPZmtoUPzjnojbF3WsERI= Original-Xref: usenet.stanford.edu gnu.emacs.help:223518 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:117643 Archived-At: I originally wrote: >> This problem first appeared several years ago with an earlier Emacs >> upgrade (23 => 24?). to which Stefan Monnier kindly replied: > The problem you describe is a bit like a traffic jam. > So even tho you may have seen another problem in an earlier Emacs which > also looked like a traffic jam, the similarity likely ends there: the > actual origin of the problem can be extremely diverse. You may be right. As part of getting 26.1 to work, I found several (setq default-var)s that had to be changed to (setq-default var), and it's not uncommon for function names and variable names to change as major version numbers increase. I thought maybe whichever variable I set to fix the problem last time had had its name changed. I was actually more surprised that I couldn't identify what I did the time before. The main reason I described the variable was in hopes someone would recognize the description and tell me what *that* variable was, even if it isn't the cause of my current problem. As to the current issue, it's not just in C-mode, though it's more apparent there. I'm also seeing a very tiny but perceptible lag even in a small, plain text buffer (such as while composing this reply) when doing just (forward-line) and (backward-line) that only moves the cursor and does no scrolling. That lag wasn't there in 25.3. Thanks for the reply, -WBE