From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings Newsgroups: gmane.emacs.bugs Subject: bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling) Date: Mon, 22 Aug 2022 14:00:34 +0000 Message-ID: <3e33847476b5c1803dc8@heytings.org> References: <87bksmx1j1.fsf@localhost> <87y1vnjgmn.fsf@gnus.org> <83y1vncbq5.fsf@gnu.org> <87r11fgi7h.fsf@gnus.org> <83sflvc85y.fsf@gnu.org> <87h729902w.fsf@gnus.org> <83edxdbs96.fsf@gnu.org> <87wnb5wthm.fsf@gnus.org> <83pmgxfyc7.fsf@gnu.org> <87fshtwsys.fsf@gnus.org> <877d35wsdd.fsf@gnus.org> <83ilmpfwrf.fsf@gnu.org> <8735dtwrar.fsf@gnus.org> <83h729ft60.fsf@gnu.org> <87tu68v3uu.fsf@gnus.org> <83tu68e83u.fsf@gnu.org> <87fshsteqc.fsf@gnus.org> <87bksgte5e.fsf@gnus.org> <877d34tdwf.fsf@gnus.org> <83pmgwdxhh.fsf@gnu.org> <8735dstdhn.fsf@gnus.org> <37dd2827f52038e95791@heytings.org> <83wnb2ddxd.fsf@gnu.org> <37dd2827f57a3d664931@heytings.org> <37dd2827f52c6a150684@heytings.org> <83tu66cfnr.fsf@gnu.org> <83fshpdctx.fsf@gnu.org> <83bksddag4.fsf@gnu.org> <8335dobgr5.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8769"; mail-complaints-to="usenet@ciao.gmane.io" Cc: larsi@gnus.org, 57207@debbugs.gnu.org, yantar92@gmail.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Aug 22 17:26:03 2022 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 1oQ9JS-00021L-Lt for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 22 Aug 2022 17:26:02 +0200 Original-Received: from localhost ([::1]:41904 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oQ9JR-0004Jt-M8 for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 22 Aug 2022 11:26:01 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47406) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oQ9Gw-0007LA-UM for bug-gnu-emacs@gnu.org; Mon, 22 Aug 2022 11:23:27 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51732) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oQ9Gw-00074X-Jx for bug-gnu-emacs@gnu.org; Mon, 22 Aug 2022 11:23:26 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oQ7zB-0005ni-Ul for bug-gnu-emacs@gnu.org; Mon, 22 Aug 2022 10:01:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Gregory Heytings Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 22 Aug 2022 14:01:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 57207 X-GNU-PR-Package: emacs Original-Received: via spool by 57207-submit@debbugs.gnu.org id=B57207.166117684121475 (code B ref 57207); Mon, 22 Aug 2022 14:01:01 +0000 Original-Received: (at 57207) by debbugs.gnu.org; 22 Aug 2022 14:00:41 +0000 Original-Received: from localhost ([127.0.0.1]:41404 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oQ7yr-0005ZN-0O for submit@debbugs.gnu.org; Mon, 22 Aug 2022 10:00:41 -0400 Original-Received: from heytings.org ([95.142.160.155]:35944) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oQ7yn-0005NG-Am for 57207@debbugs.gnu.org; Mon, 22 Aug 2022 10:00:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1661176835; bh=Qjkcbr40gaBqLwVGNJkiK7skTuCaJIXfXJbdU35AY0U=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=8QjOCfDJUaiAk9LIg8aIeNPdlioenNuaY0Y54/umeSrf5CDa69G96HWiZCnq6ivF9 69Jeg4mVRa1X+ztgK5QPJo0V0WvnC8WltJdHS6YrogogyYPywBM63H0/s9CyMmT0hl meCEaeEcjTc1xxECu1zgHodCYrubm7jstKZGhiJe5gXXLg+LldIpUAhomk1xYihuzX kCYYBsRNiblbP9K9JKIWVjWllXAtwq8DA6ELnHDqyUlsu3X6Nuixr5CzIj9sDDZ+eX /O3cLuVO6c5copqEpPG15rGJc13gOdHf9eZa5kWR2LQDUWJCJ1MwBYAJFOIe/j8Aai JevuMYb6GPyJw== In-Reply-To: <8335dobgr5.fsf@gnu.org> 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:240431 Archived-At: > > However, resetting the narrowing in _all_ buffers at the beginning of > each redisplay cycle could be quite expensive in sessions with many > hundreds of live buffers. > Actually, we only reset the locked narrowing in all buffers. An Emacs session would typically only have a handful of live buffers in which such a narrowing is used, i.e. a small fraction of the live buffers. > > How much time does the loop in reset_outermost_narrowings take per live > buffer? > About 150 ns/buffer here. I'll see whether and how it could be improved. > > Should we perhaps maintain a list of buffers with such narrowing? It > should be a very short list. > That's one possibility indeed.