From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Daniel Pittman Newsgroups: gmane.emacs.help Subject: Re: emacs 23 display slow over cable modem Date: Sun, 24 Oct 2010 23:27:25 +1100 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1287924016 20178 80.91.229.12 (24 Oct 2010 12:40:16 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 24 Oct 2010 12:40:16 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Oct 24 14:40:15 2010 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1P9zrz-0007ki-0Y for geh-help-gnu-emacs@m.gmane.org; Sun, 24 Oct 2010 14:40:15 +0200 Original-Received: from localhost ([127.0.0.1]:54299 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1P9zry-0002hR-1h for geh-help-gnu-emacs@m.gmane.org; Sun, 24 Oct 2010 08:40:14 -0400 Original-Received: from [140.186.70.92] (port=33191 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1P9zr5-0002dK-9H for help-gnu-emacs@gnu.org; Sun, 24 Oct 2010 08:39:20 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1P9zoX-00052L-Ou for help-gnu-emacs@gnu.org; Sun, 24 Oct 2010 08:36:43 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:35195) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1P9zoX-000528-DQ for help-gnu-emacs@gnu.org; Sun, 24 Oct 2010 08:36:41 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1P9zoQ-0006mz-5v for help-gnu-emacs@gnu.org; Sun, 24 Oct 2010 14:36:34 +0200 Original-Received: from ppp59-167-189-244.static.internode.on.net ([59.167.189.244]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 24 Oct 2010 14:36:34 +0200 Original-Received: from daniel by ppp59-167-189-244.static.internode.on.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 24 Oct 2010 14:36:34 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 32 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: ppp59-167-189-244.static.internode.on.net User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (darwin) Cancel-Lock: sha1:BAyndWE3g8xti3TR4NsQ7fF7Pzo= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:75198 Archived-At: "Strozzi, David J." writes: > I compiled emacs 23.2.1 in my home dir on a linux cluster (amd 64 chips) at > work. I connect over VPN from home, where I have a cable modem. For a long > time, emacs 21.4 *run as an xwindows app* (not "emacs -nw" living in a > terminal) has performed fine - after it starts (which may take some time), > typing, switching buffers, etc is pretty instant. But, doing the same thing > in 23.2 gives much slower response. Both work fine in -nw mode, but there > are some reasons (keyboard mappings, multi-windows, mouse) why I like the > full xwin app. From my office, both xwin's run very fast. > > Any ideas on why? At a guess, because Emacs 23 uses Xft for font rendering, which provides nice anti-aliased display, while Emacs 21 uses only X core fonts. Theoretically the X server caching and client libraries make Xft reasonably efficient over long, thin pipes, but practically it is optimized on the assumption that people basically don't do this any more. If you can live without the better fonts you can still turn on the core font backend after install[1] and just use that. Regards, Daniel Footnotes: [1] Read the manual, I don't actually know how, I fear. :) -- ✣ Daniel Pittman ✉ daniel@rimspace.net ☎ +61 401 155 707 ♽ made with 100 percent post-consumer electrons