From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Leo Liu Newsgroups: gmane.emacs.bugs Subject: bug#24012: 25.0.95; forward-comment backwards takes O(n^2) Date: Mon, 18 Jul 2016 11:05:01 +0800 Message-ID: References: <83poqc4g6m.fsf@gnu.org> <83zipf1xlx.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1468811186 475 80.91.229.3 (18 Jul 2016 03:06:26 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 18 Jul 2016 03:06:26 +0000 (UTC) Cc: 24012@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Jul 18 05:06:15 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bOysn-00034O-OF for geb-bug-gnu-emacs@m.gmane.org; Mon, 18 Jul 2016 05:06:13 +0200 Original-Received: from localhost ([::1]:44039 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bOysn-00061q-2d for geb-bug-gnu-emacs@m.gmane.org; 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One guess is that the different comment syntax somehow > causes this. But that's a guess. How to profile it? Before reporting this bug I have been trying profiler and elp and came to the conclusion that forward-comment was the issue. How do you go further than forward-comment which is in C which I only have limited experience with? Leo