From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Two strange messages while building Emacs on MS-Windows Date: Sun, 09 Dec 2012 10:50:31 -0500 Message-ID: References: <83mwxpmtp6.fsf@gnu.org> <83fw3hm0nn.fsf@gnu.org> <83k3srdh3d.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1355068603 6023 80.91.229.3 (9 Dec 2012 15:56:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 9 Dec 2012 15:56:43 +0000 (UTC) Cc: emacs-devel@gnu.org, dmoncayo@gmail.com To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Dec 09 16:56:56 2012 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 1ThjFN-0006No-G2 for ged-emacs-devel@m.gmane.org; Sun, 09 Dec 2012 16:56:53 +0100 Original-Received: from localhost ([::1]:35324 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ThjFB-0006k8-7k for ged-emacs-devel@m.gmane.org; Sun, 09 Dec 2012 10:56:41 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:37351) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ThjF8-0006jr-PN for emacs-devel@gnu.org; Sun, 09 Dec 2012 10:56:39 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ThjF7-0000V5-Ob for emacs-devel@gnu.org; Sun, 09 Dec 2012 10:56:38 -0500 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.182]:40088) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ThjF5-0000Up-Qo; Sun, 09 Dec 2012 10:56:35 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av0EAG6Zu09soXOY/2dsb2JhbABEtBGBCIIVAQEEAVYjBQsLNBIUGA0QAROIHAW6CZBEA4hCmnGBWIMH X-IronPort-AV: E=Sophos;i="4.75,637,1330923600"; d="scan'208";a="209460152" Original-Received: from 108-161-115-152.dsl.teksavvy.com (HELO pastel.home) ([108.161.115.152]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 09 Dec 2012 10:56:34 -0500 Original-Received: by pastel.home (Postfix, from userid 20848) id 2CD8F58D3B; Sun, 9 Dec 2012 10:50:31 -0500 (EST) In-Reply-To: <83k3srdh3d.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 09 Dec 2012 05:44:54 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 206.248.154.182 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:155399 Archived-At: > The more important reason is that byte compilation on Windows during > bootstrap is done sequentially, whereas on Unix it's done in parallel > (under "make -j"). I do "make -j2" and get about %170 of cpu utilisation (most of the less-than-100% is due to phases in the build process where we only have one process running, such as when running `configure'), so presumably my 6min would turn into no more than 10min if run sequentially. Still pretty far from his 30min, so while "make -j" would help, the inefficiency of the bootstrap is at least as important in his specific case, I think. Stefan