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 12:45:54 +0300 Message-ID: <83wpatlxrh.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> <834lxym8x4.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1491731182 7866 195.159.176.226 (9 Apr 2017 09:46:22 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 9 Apr 2017 09:46:22 +0000 (UTC) Cc: 26402@debbugs.gnu.org To: gennady.uraltsev@gmail.com Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Apr 09 11:46:16 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 1cx9QA-0000xv-Cr for geb-bug-gnu-emacs@m.gmane.org; Sun, 09 Apr 2017 11:46:10 +0200 Original-Received: from localhost ([::1]:57883 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cx9QE-0004ZX-V1 for geb-bug-gnu-emacs@m.gmane.org; Sun, 09 Apr 2017 05:46:14 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55358) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cx9Q6-0004ZR-6O for bug-gnu-emacs@gnu.org; Sun, 09 Apr 2017 05:46:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cx9Q2-0005fm-Ui for bug-gnu-emacs@gnu.org; Sun, 09 Apr 2017 05:46:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:40716) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cx9Q2-0005fi-Qr for bug-gnu-emacs@gnu.org; Sun, 09 Apr 2017 05:46:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cx9Q2-0005yc-L7 for bug-gnu-emacs@gnu.org; Sun, 09 Apr 2017 05:46:02 -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 09:46:02 +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=B26402.149173115322951 (code B ref 26402); Sun, 09 Apr 2017 09:46:02 +0000 Original-Received: (at 26402) by debbugs.gnu.org; 9 Apr 2017 09:45:53 +0000 Original-Received: from localhost ([127.0.0.1]:38915 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cx9Pt-0005y7-Aj for submit@debbugs.gnu.org; Sun, 09 Apr 2017 05:45:53 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:36114) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cx9Pr-0005xv-Jr for 26402@debbugs.gnu.org; Sun, 09 Apr 2017 05:45:51 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cx9Pj-0005ae-4x for 26402@debbugs.gnu.org; Sun, 09 Apr 2017 05:45:46 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:52045) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cx9Pj-0005aa-12; Sun, 09 Apr 2017 05:45:43 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3554 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cx9Pi-0007vR-9s; Sun, 09 Apr 2017 05:45:42 -0400 In-reply-to: <834lxym8x4.fsf@gnu.org> (message from Eli Zaretskii on Sun, 09 Apr 2017 08:44:55 +0300) 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:131402 Archived-At: > Date: Sun, 09 Apr 2017 08:44:55 +0300 > From: Eli Zaretskii > Cc: 26402@debbugs.gnu.org > > > 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. How proficient are you with using GDB? If I ask you to step through a certain Emacs function and tell which of its parts is the slow one, can you do that? I can give more detailed instructions if needed. TIA