From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#29554: 25.3; 100% CPU spinning, while parsing compile output. Date: Mon, 04 Dec 2017 19:29:42 -0500 Message-ID: <87k1y2ggp5.fsf@users.sourceforge.net> References: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1512433815 19336 195.159.176.226 (5 Dec 2017 00:30:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 5 Dec 2017 00:30:15 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.90 (gnu/linux) Cc: 29554@debbugs.gnu.org To: Sam Varshavchik Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Dec 05 01:30:10 2017 Return-path: Envelope-to: geb-bug-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 1eM17h-0004b6-H8 for geb-bug-gnu-emacs@m.gmane.org; Tue, 05 Dec 2017 01:30:09 +0100 Original-Received: from localhost ([::1]:45797 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eM17l-0002ko-FG for geb-bug-gnu-emacs@m.gmane.org; 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Mon, 04 Dec 2017 16:29:43 -0800 (PST) In-Reply-To: (Sam Varshavchik's message of "Sun, 03 Dec 2017 12:55:49 -0500") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:140704 Archived-At: merge 29554 13369 quit Sam Varshavchik writes: > Attached is simple makefile with a bunch of echo statements that > reproduce the output of an actual compilation. I had to gzip and > attach it, in order to avoid the large lines getting messed up by > E-mail formatting. > > Saving this makefile, and hitting F5, or executing "compile" makes > emacs spin with 100% CPU utilization for about five seconds, before it > starts responding again. Then, going to the compilation output buffer, > and M-> to go the end of the buffer, that also pegs emacs for another > 4-5 seconds, at 100% cpu. > > Yup, these are very long lines. But that's the end result from > automake and libtool. This is the real world, when it comes to C++ > development these days... This is Bug#13369/9065/3700. You can get some relief by pruning compilation-error-regexp-alist.