From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#26402: 25.2; Font rendering extremely slow on any non-default font Date: Sun, 09 Apr 2017 08:44:55 +0300 Message-ID: <834lxym8x4.fsf@gnu.org> References: <588df69e-068d-e2c5-3c2f-3ca238313aa9@gmail.com> <83inmfm00v.fsf@gnu.org> <04e03d3a-62f1-82f2-b7a8-9e36cf5e826b@gmail.com> <83h91ynam6.fsf@gnu.org> <541302bf-540b-aedb-4ca4-2ba3acfe495e@gmail.com> <83bms6n7hk.fsf@gnu.org> <2a3d3577-ccbf-c30f-15ab-390cd1cd5278@gmail.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1491716720 26103 195.159.176.226 (9 Apr 2017 05:45:20 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 9 Apr 2017 05:45:20 +0000 (UTC) Cc: 26402@debbugs.gnu.org To: Gennady Uraltsev Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Apr 09 07:45:12 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 1cx5eu-0004yT-Al for geb-bug-gnu-emacs@m.gmane.org; Sun, 09 Apr 2017 07:45:08 +0200 Original-Received: from localhost ([::1]:57375 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cx5ev-0000PL-5G for geb-bug-gnu-emacs@m.gmane.org; Sun, 09 Apr 2017 01:45:09 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57435) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cx5ep-0000Nt-8S for bug-gnu-emacs@gnu.org; Sun, 09 Apr 2017 01:45:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cx5eo-0002XT-27 for bug-gnu-emacs@gnu.org; Sun, 09 Apr 2017 01:45:03 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:40596) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cx5en-0002XP-VK for bug-gnu-emacs@gnu.org; Sun, 09 Apr 2017 01:45:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cx5en-0008Oi-PT for bug-gnu-emacs@gnu.org; Sun, 09 Apr 2017 01:45:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 09 Apr 2017 05:45:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 26402 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 26402-submit@debbugs.gnu.org id=B26402.149171669532255 (code B ref 26402); Sun, 09 Apr 2017 05:45:01 +0000 Original-Received: (at 26402) by debbugs.gnu.org; 9 Apr 2017 05:44:55 +0000 Original-Received: from localhost ([127.0.0.1]:38795 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cx5eh-0008OB-G4 for submit@debbugs.gnu.org; Sun, 09 Apr 2017 01:44:55 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:38178) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cx5ef-0008Ny-IT for 26402@debbugs.gnu.org; Sun, 09 Apr 2017 01:44:54 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cx5eW-0002VK-GK for 26402@debbugs.gnu.org; Sun, 09 Apr 2017 01:44:48 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:50561) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cx5eW-0002VG-Cp; Sun, 09 Apr 2017 01:44:44 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3254 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cx5eV-0007xF-Kz; Sun, 09 Apr 2017 01:44:44 -0400 In-reply-to: <2a3d3577-ccbf-c30f-15ab-390cd1cd5278@gmail.com> (message from Gennady Uraltsev on Sun, 9 Apr 2017 00:33:23 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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:131396 Archived-At: > Cc: 26402@debbugs.gnu.org > From: Gennady Uraltsev > Date: Sun, 9 Apr 2017 00:33:23 +0200 > > I recompiled from latest git of today so emacs decalres version 26.0.50 > I tried recompiling without your patch and also with your patch. No > apparent improvement > > I tried running both (text-scale-adjust INC) and buffer-set-face > both with and without (setq inhibit-compacting-font-caches t) Then I think this is a problem we never saw before. Unfortunately, since I'm unable to reproduce this on my machine, I cannot debug it further. One last idea I have is to upgrade all the relevant libraries to their latest versions. > The profiler profiles are attached. The profiles clearly tell the problem is related to font metrics, but they don't tell what exactly causes the slow-down or why. Sorry.