From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#47589: [PATCH] 27.1; Freeze on long lines in compilation-shell-minor-mode Date: Thu, 06 May 2021 12:51:53 +0200 Message-ID: <87fsz0w2wm.fsf@gnus.org> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37878"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 47589@debbugs.gnu.org To: Anton Tayanovskyy Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu May 06 12:53:15 2021 Return-path: Envelope-to: geb-bug-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 1lebd4-0009ix-NM for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 06 May 2021 12:53:14 +0200 Original-Received: from localhost ([::1]:45778 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lebd3-0001X6-Nn for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 06 May 2021 06:53:13 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33952) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lebct-0001RM-2R for bug-gnu-emacs@gnu.org; Thu, 06 May 2021 06:53:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:54049) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lebcs-0000Rs-RV for bug-gnu-emacs@gnu.org; Thu, 06 May 2021 06:53:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lebcs-0002j0-QS for bug-gnu-emacs@gnu.org; Thu, 06 May 2021 06:53:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 06 May 2021 10:53:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47589 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 47589-submit@debbugs.gnu.org id=B47589.162029832510420 (code B ref 47589); Thu, 06 May 2021 10:53:02 +0000 Original-Received: (at 47589) by debbugs.gnu.org; 6 May 2021 10:52:05 +0000 Original-Received: from localhost ([127.0.0.1]:37352 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lebbx-0002i0-0e for submit@debbugs.gnu.org; Thu, 06 May 2021 06:52:05 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:47190) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lebbu-0002ha-P9 for 47589@debbugs.gnu.org; Thu, 06 May 2021 06:52:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=RWAlYoq2os6ULKxg8o4TPcPBFg+0OYt23OGK9p8sdkc=; b=gELQv5emyOHmgIFYT/r9muiQxY qtVLROYtY+spMLeocGNKMv7jisB+Xl4buWEZ7LzYXI24hY+8WiFbaziaOnvi9m9KXa9W85Rm112OF hlES3NwfzEYyNQFuIF9IcQDzNLRmFP029udYq9NpySLWOJLiMBAHE2khX7TpCboENlkg=; Original-Received: from cm-84.212.220.105.getinternet.no ([84.212.220.105] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lebbm-0006I8-BE; Thu, 06 May 2021 12:51:56 +0200 X-Now-Playing: Nico's _Do Or Die_: "Femme Fatale" In-Reply-To: (Anton Tayanovskyy's message of "Sat, 3 Apr 2021 22:52:36 -0400") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:205814 Archived-At: Anton Tayanovskyy writes: > The patch edits the function to use a limited version of > `re-search-forward`. Instead of finding the pattern everywhere, it only > looks for the pattern in the first 1024 chars of every line. It seems > plausible that real-world compiler warnings would sit close to the > beginning of lines. > > With the patch the experience (in combination with global-so-long-mode) > becomes tolerable; while not lightning fast, Emacs is a lot more > responsive in this situation and I as a user retain control to fix the > problem, such as comint-clear-buffer etc. I think that's an interesting approach to this problem. I seem to recall there being some work in this area, though, and I'm not able to see the slowdowns in the example given here (even if I increase the number hugely). Would it be possible for you to test Emacs 28 and see whether you still see the problem there? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no