From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: 64 bit official Windows builds Date: Thu, 11 Feb 2016 08:58:45 -0500 Message-ID: References: <2577057e-98d3-41ce-ade2-1496648b09c3@googlegroups.com> <8337t3qdpd.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1455199165 375 80.91.229.3 (11 Feb 2016 13:59:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 11 Feb 2016 13:59:25 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Feb 11 14:59:17 2016 Return-path: Envelope-to: geh-help-gnu-emacs@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 1aTrm5-0006Ah-BS for geh-help-gnu-emacs@m.gmane.org; Thu, 11 Feb 2016 14:59:13 +0100 Original-Received: from localhost ([::1]:50291 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aTrm4-0007Ph-Ts for geh-help-gnu-emacs@m.gmane.org; Thu, 11 Feb 2016 08:59:12 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58737) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aTrlt-0007PY-JL for help-gnu-emacs@gnu.org; Thu, 11 Feb 2016 08:59:02 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aTrlo-00088E-Gv for help-gnu-emacs@gnu.org; Thu, 11 Feb 2016 08:59:01 -0500 Original-Received: from plane.gmane.org ([80.91.229.3]:39204) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aTrlo-000881-9t for help-gnu-emacs@gnu.org; Thu, 11 Feb 2016 08:58:56 -0500 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1aTrlm-0005se-Dq for help-gnu-emacs@gnu.org; Thu, 11 Feb 2016 14:58:54 +0100 Original-Received: from 69-196-189-155.dsl.teksavvy.com ([69.196.189.155]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 11 Feb 2016 14:58:54 +0100 Original-Received: from monnier by 69-196-189-155.dsl.teksavvy.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 11 Feb 2016 14:58:54 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 15 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 69-196-189-155.dsl.teksavvy.com User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) Cancel-Lock: sha1:/QbFvQodbdbcDS95V8PJhnNLw5A= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:109101 Archived-At: >> Could I ask, what is the benefit of 64 bits compared to 32 bits for windows ? > It will run roughly twice faster. [...] > slower, because running a 32-bit executable on a 64-bit Windows > requires expensive thunking for every call to any Windows API, Holy crap? Really? It's hard to believe that 64-bit Windows's emulation of the 32-bit API is so inefficient that it causes a "rough slowdown" by a factor 2 in an application like Emacs. Do you see such a factor-of-2 difference when doing "rm lisp/**/*.elc; make"? Or in which kind of circumstance have you seen such a slowdown? Stefan