From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Is it safe to use the combine-after-change-calls like this? Date: Tue, 16 Apr 2019 21:14:48 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="219764"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Apr 17 03:15:07 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hGZAH-000uzN-VF for ged-emacs-devel@m.gmane.org; Wed, 17 Apr 2019 03:15:06 +0200 Original-Received: from localhost ([127.0.0.1]:44971 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hGZAG-0002ZR-Sm for ged-emacs-devel@m.gmane.org; Tue, 16 Apr 2019 21:15:04 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:43966) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hGZAA-0002ZM-VH for emacs-devel@gnu.org; Tue, 16 Apr 2019 21:14:59 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hGZA9-0001sN-UT for emacs-devel@gnu.org; Tue, 16 Apr 2019 21:14:58 -0400 Original-Received: from [195.159.176.226] (port=55138 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hGZA9-0001le-KM for emacs-devel@gnu.org; Tue, 16 Apr 2019 21:14:57 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.89) (envelope-from ) id 1hGZA7-000ujU-7j for emacs-devel@gnu.org; Wed, 17 Apr 2019 03:14:55 +0200 X-Injected-Via-Gmane: http://gmane.org/ Cancel-Lock: sha1:+WiiWIur2UoR27vTtT+3S5ET4MM= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:235562 Archived-At: > The problem is that: when editing with multiple active cursors, emacs lags > too much. It seems that most of cpu is used by functions in > after-change-functions. > > The issue: https://github.com/victorhge/iedit/issues/83 I see in this issue that you're using iedit in a CC-mode buffer. Does the problem occur with other major modes? E.g. in perl-mode or cperl-mode buffers (which have "similarly" heavy requirements to apply syntax-table text-properties). Stefan