From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.bugs Subject: bug#25706: 26.0.50; Slow C file fontification Date: Tue, 1 Dec 2020 14:34:58 +0100 Message-ID: References: <55C404DC-1C29-449F-9A49-B20EDFFCFCEA@acm.org> <86EC566E-0CE6-4D98-9025-0C0551CE1546@acm.org> <87o8jecc07.fsf@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="21959"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Alan Mackenzie , Lars Ingebrigtsen , 25706@debbugs.gnu.org To: Ravine Var Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Dec 01 14:38:35 2020 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 1kk5rW-0005bh-Tr for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 01 Dec 2020 14:38:34 +0100 Original-Received: from localhost ([::1]:46184 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kk5rV-00029U-S5 for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 01 Dec 2020 08:38:33 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:34576) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kk5p6-0007BR-4K for bug-gnu-emacs@gnu.org; Tue, 01 Dec 2020 08:36:04 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:46747) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kk5p4-0000WD-Kv; Tue, 01 Dec 2020 08:36:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kk5p4-0002Pp-Hd; Tue, 01 Dec 2020 08:36:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org, bug-cc-mode@gnu.org Resent-Date: Tue, 01 Dec 2020 13:36:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 25706 X-GNU-PR-Package: emacs,cc-mode X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 25706-submit@debbugs.gnu.org id=B25706.16068297069216 (code B ref 25706); Tue, 01 Dec 2020 13:36:02 +0000 Original-Received: (at 25706) by debbugs.gnu.org; 1 Dec 2020 13:35:06 +0000 Original-Received: from localhost ([127.0.0.1]:58293 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kk5oA-0002Oa-Al for submit@debbugs.gnu.org; Tue, 01 Dec 2020 08:35:06 -0500 Original-Received: from mail237c50.megamailservers.eu ([91.136.10.247]:57394 helo=mail56c50.megamailservers.eu) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kk5o8-0002O5-0j for 25706@debbugs.gnu.org; Tue, 01 Dec 2020 08:35:05 -0500 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1606829701; bh=+nG6gOMmqQcWubfpAq8u1pLsuVDb5/NZExTgPHgE2jg=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=MvavZlf3pRupEGx3VLWY5AUgCDEjQaP/DvN4rTKj16QOfV7v+pWX0H74fgQTSzqvP Vw5CttphODI4SMFxwAxlvUSnYZE7AsiMTQDyX7ON1aCoDSjDZ+mFN9iWw5IzYtv33s JgzafCQr5A15sZJxhqRDuErUkjPSzcEZUqlEBfhY= Feedback-ID: mattiase@acm.or Original-Received: from stanniol.lan (c-064ae655.032-75-73746f71.bbcust.telenor.se [85.230.74.6]) (authenticated bits=0) by mail56c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 0B1DYw0N022469; Tue, 1 Dec 2020 13:35:00 +0000 In-Reply-To: <87o8jecc07.fsf@gmail.com> X-Mailer: Apple Mail (2.3445.104.17) X-CTCH-RefID: str=0001.0A782F1F.5FC64685.006D, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=dMfYZ9Rb c=1 sm=1 tr=0 a=Ni+dBsiEfW2GqKMPYZim9A==:117 a=Ni+dBsiEfW2GqKMPYZim9A==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=pGLkceISAAAA:8 a=U8Ay6_k-XTb7hmpisBUA:9 a=CjuIK1q_8ugA:10 X-Origin-Country: SE 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:194738 Archived-At: 1 dec. 2020 kl. 06.48 skrev Ravine Var : > Will this patch fix the problem with big header files like > the one originally reported ? Unfortunately it seems that my benchmarking approach was misleading; see = my previous reply to Alan. Sorry about that. The patch helps a bit but not nearly enough, so for big header files = like the ones you mention in the asic_reg directory, it may not make = much of a difference. It is obviously worthwhile, but again as Alan noted, the incremental = fontifying cost increases with distance from the start of the file = (absent any actual code other than preprocessor definitions), leading to = the observed superlinear behaviour. More robust heuristics needed.