From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Andy Moreton Newsgroups: gmane.emacs.devel Subject: Re: Set inhibit-compacting-font-caches non-nil on MS-Windows Date: Sat, 03 Aug 2019 18:54:44 +0100 Message-ID: <86ef225e3f.fsf@gmail.com> References: <83a7cqe8yh.fsf@gnu.org>> <3032a588-5ac6-4b56-abb0-bc01a7ecd0b7@default> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="245448"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (windows-nt) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Aug 03 19:55:08 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1htyFH-0011kM-TU for ged-emacs-devel@m.gmane.org; Sat, 03 Aug 2019 19:55:08 +0200 Original-Received: from localhost ([::1]:41220 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1htyFF-0003gH-Kw for ged-emacs-devel@m.gmane.org; Sat, 03 Aug 2019 13:55:05 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53336) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1htyF8-0003dR-Ac for emacs-devel@gnu.org; Sat, 03 Aug 2019 13:54:59 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1htyF7-0001t4-7U for emacs-devel@gnu.org; Sat, 03 Aug 2019 13:54:58 -0400 Original-Received: from 195-159-176-226.customer.powertech.no ([195.159.176.226]:37456 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1htyF7-0001s1-17 for emacs-devel@gnu.org; Sat, 03 Aug 2019 13:54:57 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.89) (envelope-from ) id 1htyF0-0011QQ-5Z for emacs-devel@gnu.org; Sat, 03 Aug 2019 19:54:50 +0200 X-Injected-Via-Gmane: http://gmane.org/ Cancel-Lock: sha1:cZo2B3gqcuHKkYi864xIGztp7QE= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:239156 Archived-At: On Sat 03 Aug 2019, Drew Adams wrote: >> I think we should make this variable non-nil by default on >> MS-Windows. >> >> There are quite a few bug reports in the bug DB which all complain >> about slow redisplay on MS-Windows, and were resolved by setting this >> variable non-nil. So it sounds like on MS-Windows the compacting of >> the font caches is not a good idea (the original code was written to >> fix a problem observed on X). > > +1. Bugs #30539 and #32159, for instance. I don't see this problem in my usual setup on Windows, probably because I have configured the fonts used in `fontset-default', resulting in shorter searches for suitable fonts. As Eli pointed out in a previous discussion, configuring the default fontset to contain the right fonts for multiple versions of Windows is a fair amount of work, and would require ongoing maintenance. Given that, setting inhibit-compacting-font-caches non-nil on Windows seems a pragmatic workaround. AndyM