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#21028: Performance regression in revision af1a69f4d17a482c359d98c00ef86fac835b5fac (Apr 2014). Date: Mon, 19 Dec 2016 18:39:16 +0200 Message-ID: <83vauf50wb.fsf@gnu.org> References: <559F9FAF.8090708@live.com> <83egkgb2wo.fsf@gnu.org> <559FF8F6.2060209@live.com> <55A652E4.5000606@yandex.ru> <56D7D5D3.4030103@live.com> <56D7DCC6.9060003@live.com> <56D7E2F6.2020008@live.com> <56D7E8D6.6080508@live.com> <831t7r1f41.fsf@gnu.org> <5ce0aa39-8a49-5cfd-2eac-343fae4505a1@live.com> <83fur3ysvk.fsf@gnu.org> <83dde388-a342-ed1e-1242-7953d9a0f525@gmail.com> <83lgx9ua9x.fsf@gnu.org> <389383ed-ce95-a558-e441-ba7cfa58d58e@gmail.com> <83bmy5u6qo.fsf@gnu.org> <2fd3e21c-37b9-d559-6306-4e8adebad3d5@gmail.com> <831sz0sfug.fsf@gnu.org> <83oa095eaw.fsf@gnu.org> <83lgvd581m.fsf@gnu.org> <83a8br6hq0.fsf@gnu.org> <672a0c69-4352-735f-cba4-025e642626ea@gmail.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: blaine.gmane.org 1482165634 27890 195.159.176.226 (19 Dec 2016 16:40:34 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 19 Dec 2016 16:40:34 +0000 (UTC) Cc: 21028@debbugs.gnu.org To: =?UTF-8?Q?Cl=C3=A9ment?= Pit--Claudel Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Dec 19 17:40:30 2016 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 1cJ0zD-0006JQ-CD for geb-bug-gnu-emacs@m.gmane.org; Mon, 19 Dec 2016 17:40:27 +0100 Original-Received: from localhost ([::1]:46589 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cJ0zH-0003rx-Sp for geb-bug-gnu-emacs@m.gmane.org; Mon, 19 Dec 2016 11:40:31 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59493) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cJ0yu-0003dA-Ha for bug-gnu-emacs@gnu.org; Mon, 19 Dec 2016 11:40:09 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cJ0yp-0007Bf-0W for bug-gnu-emacs@gnu.org; Mon, 19 Dec 2016 11:40:08 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:60643) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cJ0yo-0007Bb-TZ for bug-gnu-emacs@gnu.org; Mon, 19 Dec 2016 11:40:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cJ0yo-0005RR-PD for bug-gnu-emacs@gnu.org; Mon, 19 Dec 2016 11:40:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 19 Dec 2016 16:40:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 21028 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 21028-submit@debbugs.gnu.org id=B21028.148216560020891 (code B ref 21028); Mon, 19 Dec 2016 16:40:02 +0000 Original-Received: (at 21028) by debbugs.gnu.org; 19 Dec 2016 16:40:00 +0000 Original-Received: from localhost ([127.0.0.1]:47807 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cJ0ym-0005Qt-25 for submit@debbugs.gnu.org; Mon, 19 Dec 2016 11:40:00 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:40131) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cJ0yk-0005Qf-AY for 21028@debbugs.gnu.org; Mon, 19 Dec 2016 11:39:58 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cJ0yb-00074I-5J for 21028@debbugs.gnu.org; Mon, 19 Dec 2016 11:39:53 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:46670) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cJ0yb-00074E-1v; Mon, 19 Dec 2016 11:39:49 -0500 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1728 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cJ0ya-0005J0-BL; Mon, 19 Dec 2016 11:39:48 -0500 In-reply-to: <672a0c69-4352-735f-cba4-025e642626ea@gmail.com> (message from =?UTF-8?Q?Cl=C3=A9ment?= Pit--Claudel on Mon, 19 Dec 2016 11:25:28 -0500) 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:127189 Archived-At: > Cc: 21028@debbugs.gnu.org > From: Clément Pit--Claudel > Date: Mon, 19 Dec 2016 11:25:28 -0500 > > Sorry for being unclear. It didn't make a difference in terms of performance. That is, after applying the changes, characters display just the same (which is good, since characters were already displayed in the right font), but performance is still bad (every redisplay takes about 5 seconds). In "emacs -Q"? If so, it didn't happen to me. I tried both the Segoe Symbol font (which nowadays includes all the Emoji, so the Emoji font is not needed), and the Segoe Emoji one, and saw no slow-down. So some other factor is at work here. > > Also, using 'unicode' is gross, IMO; it's better to specify specific > > ranges of characters you want to be displayed using the font family. > > I'm not sure. I want to use these two fonts as fallbacks — hence the append and the 'unicode range. How can an Emoji font be a fallback for the entire range of Unicode characters? It's not what it's for.