From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.devel Subject: Re: desktop.el: autosave? Date: Fri, 07 Dec 2007 01:28:23 +0200 Organization: JURTA Message-ID: <87d4tjbh0g.fsf@jurta.org> References: <8763zjfe0v.fsf@jurta.org> <87mysridxt.fsf@jurta.org> <20071206153806.GA20731@www.trapp.net> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1196984379 16634 80.91.229.12 (6 Dec 2007 23:39:39 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 6 Dec 2007 23:39:39 +0000 (UTC) Cc: tomas@tuxteam.de, rms@gnu.org, emacs-devel@gnu.org To: Reuben Thomas Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Dec 07 00:39:47 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1J0QJk-0006eV-NO for ged-emacs-devel@m.gmane.org; Fri, 07 Dec 2007 00:39:44 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1J0QJT-0004Q9-6c for ged-emacs-devel@m.gmane.org; Thu, 06 Dec 2007 18:39:27 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1J0QJP-0004Pt-O8 for emacs-devel@gnu.org; Thu, 06 Dec 2007 18:39:23 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1J0QJO-0004NV-4T for emacs-devel@gnu.org; Thu, 06 Dec 2007 18:39:23 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1J0QJN-0004NH-RB for emacs-devel@gnu.org; Thu, 06 Dec 2007 18:39:21 -0500 Original-Received: from relay02.kiev.sovam.com ([62.64.120.197]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1J0QJF-0004le-Uf; Thu, 06 Dec 2007 18:39:14 -0500 Original-Received: from [83.170.232.243] (helo=smtp.svitonline.com) by relay02.kiev.sovam.com with esmtp (Exim 4.67) (envelope-from ) id 1J0QJ0-000Hzl-1C; Fri, 07 Dec 2007 01:39:10 +0200 In-Reply-To: (Reuben Thomas's message of "Thu, 6 Dec 2007 15:47:38 +0000 (GMT)") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.50 (gnu/linux) X-Scanner-Signature: 69470ef176344869aa12c1af2e75e870 X-DrWeb-checked: yes X-SpamTest-Envelope-From: juri@jurta.org X-SpamTest-Group-ID: 00000000 X-SpamTest-Header: Not Detected X-SpamTest-Info: Profiles 1860 [Dec 06 2007] X-SpamTest-Info: helo_type=3 X-SpamTest-Info: {HEADERS: header Content-Type found without required header Content-Transfer-Encoding} X-SpamTest-Method: none X-SpamTest-Rate: 19 X-SpamTest-Status: Not detected X-SpamTest-Status-Extended: not_detected X-SpamTest-Version: SMTP-Filter Version 3.0.0 [0255], KAS30/Release X-detected-kernel: by monty-python.gnu.org: FreeBSD 4.8-5.1 (or MacOS X 10.2-10.3) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:84814 Archived-At: >>>> I'm not sure an idle timer is good for this feature. I want to auto-save >>>> the desktop at quite long time intervals [...] >> >>> Why do you want to save at such long intervals? Is there a performance >>> problem with just using the idle timer? [...] >> >> Disk spin-up on laaptops comes to mind. The longer the intervals the >> longer bettery (and disk!) life. > > That argument applies to any auto-save, not just desktop. I'm trying to > work out why one would want one interval for auto-save and another for > desktop save. Saving a buffer's file is fast operation comparing to saving the desktop that takes more time because it is a cpu-intensive task that collects information from all buffers and some possibly long lists and writes to the usually large desktop file. The default timeout for auto-save is 30 sec which is ok for auto-saving normal files, but I don't see a need to waste resources to save the desktop so often. I have no serious problems with short intervals, but some users may have for various reasons (low memory that causes reading from the swap space when collecting data to save to the desktop file, slow disk access, etc.). So users may want to increase the timeout for the idle timer. But the main problem with idle timers is that with long intervals they may never run. -- Juri Linkov http://www.jurta.org/emacs/