From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ken Goldman Newsgroups: gmane.emacs.help Subject: Re: How to debug high CPU usage -> hang Date: Wed, 11 Jan 2023 15:24:53 -0500 Message-ID: References: <831qo2o1p2.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37142"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Jan 11 21:25:35 2023 Return-path: Envelope-to: geh-help-gnu-emacs@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 1pFhfC-0009XH-Ov for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 11 Jan 2023 21:25:34 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pFhei-0006SZ-IH; Wed, 11 Jan 2023 15:25:04 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pFheh-0006SO-8D for help-gnu-emacs@gnu.org; Wed, 11 Jan 2023 15:25:03 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pFhef-0003v7-Dd for help-gnu-emacs@gnu.org; Wed, 11 Jan 2023 15:25:02 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1pFheb-0008uM-VA for help-gnu-emacs@gnu.org; Wed, 11 Jan 2023 21:24:57 +0100 X-Injected-Via-Gmane: http://gmane.org/ Content-Language: en-US In-Reply-To: <831qo2o1p2.fsf@gnu.org> Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: 7 X-Spam_score: 0.7 X-Spam_bar: / X-Spam_report: (0.7 / 5.0 requ) BAYES_00=-1.9, FORGED_MUA_MOZILLA=2.309, HEADER_FROM_DIFFERENT_DOMAINS=0.249, NICE_REPLY_A=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:142207 Archived-At: On 1/10/2023 10:21 AM, Eli Zaretskii wrote: >> From: Ken Goldman >> Date: Tue, 10 Jan 2023 09:58:58 -0500 >> >> I'm editing in ReST mode, Windows 11, emacs 28.1. >> >> Occasionally, I want to jump (search, etc.) and the CPU usage jumps and >> emacs hangs. I suspect a font-lock issue. >> >> I fixed one by bisecting the text, then changing a table type. Now I >> have another. >> >> Is there a general way to debug? > > I can suggest profiling and/or attaching a debugger. > Attaching a debugger to the lisp major mode, or building emacs from source?