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 02:03:56 +0200 Organization: JURTA Message-ID: <87abon5q1f.fsf@jurta.org> References: <8763zjfe0v.fsf@jurta.org> <87mysridxt.fsf@jurta.org> <20071206153806.GA20731@www.trapp.net> <87d4tjbh0g.fsf@jurta.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1196985984 21133 80.91.229.12 (7 Dec 2007 00:06:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 7 Dec 2007 00:06:24 +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 01:06:33 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 1J0QjU-0006x8-4y for ged-emacs-devel@m.gmane.org; Fri, 07 Dec 2007 01:06:20 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1J0QjD-0000HX-9R for ged-emacs-devel@m.gmane.org; Thu, 06 Dec 2007 19:06:03 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1J0Qj3-00007o-VI for emacs-devel@gnu.org; Thu, 06 Dec 2007 19:05:54 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1J0Qj2-00005V-8S for emacs-devel@gnu.org; Thu, 06 Dec 2007 19:05:53 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1J0Qj1-00005H-RR for emacs-devel@gnu.org; Thu, 06 Dec 2007 19:05:51 -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 1J0Qiy-0002jR-46; Thu, 06 Dec 2007 19:05:48 -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 1J0Qir-0000u2-KK; Fri, 07 Dec 2007 02:05:46 +0200 In-Reply-To: (Reuben Thomas's message of "Thu, 6 Dec 2007 23:44:52 +0000 (GMT)") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.50 (gnu/linux) X-Scanner-Signature: 5bcd58edb95cdacf596e852bfe0375ec 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:84817 Archived-At: >> 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. > > It's easy to argue about this, but numbers are more convincing. I don't > know anything about instrumenting functions in Emacs; how can I find out > how long Emacs spends running desktop-save over a particular time period? You can evaluate: (let ((start (float-time))) (desktop-save desktop-dirname) (- (float-time) start)) that returns a number of seconds spent for desktop saving. >> But the main problem with idle timers is that with long intervals they >> may never run. > > So don't use long intervals: if the computer is idle anyway, why does it > matter if Emacs does some work? Or does "idle" only apply to Emacs? "Idle" applies only to Emacs. And if the user changes nothing in Emacs during long idle periods it is redundant to write the same desktop file without changes every 30 sec. -- Juri Linkov http://www.jurta.org/emacs/