From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Eric S. Raymond" Newsgroups: gmane.emacs.devel Subject: Re: Time to drop the pre-dump phase in the build? Date: Fri, 10 Jan 2014 15:09:30 -0500 Organization: Eric Conspiracy Secret Labs Message-ID: <20140110200930.GA9970@thyrsus.com> References: <20140110191530.5772E38019B@snark.thyrsus.com> Reply-To: esr@thyrsus.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1389384576 28277 80.91.229.3 (10 Jan 2014 20:09:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 10 Jan 2014 20:09:36 +0000 (UTC) Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Jan 10 21:09:43 2014 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1W1iOk-0004ZJ-TV for ged-emacs-devel@m.gmane.org; Fri, 10 Jan 2014 21:09:43 +0100 Original-Received: from localhost ([::1]:58824 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W1iOk-0005Ge-Dl for ged-emacs-devel@m.gmane.org; Fri, 10 Jan 2014 15:09:42 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59898) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W1iOe-0005Fa-85 for emacs-devel@gnu.org; Fri, 10 Jan 2014 15:09:40 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W1iOY-0008Gi-UT for emacs-devel@gnu.org; Fri, 10 Jan 2014 15:09:36 -0500 Original-Received: from static-71-162-243-5.phlapa.fios.verizon.net ([71.162.243.5]:47948 helo=snark.thyrsus.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W1iOY-0008Ge-QO for emacs-devel@gnu.org; Fri, 10 Jan 2014 15:09:30 -0500 Original-Received: by snark.thyrsus.com (Postfix, from userid 1000) id A512B38019B; Fri, 10 Jan 2014 15:09:30 -0500 (EST) Content-Disposition: inline In-Reply-To: X-Eric-Conspiracy: There is no conspiracy User-Agent: Mutt/1.5.21 (2010-09-15) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 71.162.243.5 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:168040 Archived-At: Stefan Monnier : > > If anybody wants to own this problem, comparative benchmarking seems > > like a good place to start. That is, hard numbers about the > > actual performance effects of pre-dumping. That'd head off a > > lot of arguments, anyway. > > On my main desktop machine (AMD E350 with 6GB of RAM): > > time src/temacs --batch => 10s > time src/emacs --batch => 0.07s > > This is on a Samsung 840 SSD. > So, as long as the real startup (GUI and .emacs) takes less than 10s, > I think this idea is a non-starter. Fair enough. I wasn't attached to it, but asking the question seemed like a good thing. -- Eric S. Raymond