From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Chris Moore Newsgroups: gmane.emacs.devel Subject: Re: Building cvs emacs on a dual-core machine Date: Fri, 22 Dec 2006 15:39:40 +0100 Message-ID: References: NNTP-Posting-Host: dough.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1166820950 31236 80.91.229.10 (22 Dec 2006 20:55:50 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 22 Dec 2006 20:55:50 +0000 (UTC) Cc: mindcooler@gmail.com, emacs-devel@gnu.org, "Kim F. Storm" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Dec 22 21:55:49 2006 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by dough.gmane.org with esmtp (Exim 4.50) id 1GxrQi-0002S0-Uw for ged-emacs-devel@m.gmane.org; Fri, 22 Dec 2006 21:55:49 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GxrQi-0002P9-Id for ged-emacs-devel@m.gmane.org; Fri, 22 Dec 2006 15:55:48 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1GxrQV-0002Ke-JE for emacs-devel@gnu.org; Fri, 22 Dec 2006 15:55:35 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1GxrQT-0002FG-DR for emacs-devel@gnu.org; Fri, 22 Dec 2006 15:55:34 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GxrQT-0002Ey-3O for emacs-devel@gnu.org; Fri, 22 Dec 2006 15:55:33 -0500 Original-Received: from [66.249.92.174] (helo=ug-out-1314.google.com) by monty-python.gnu.org with esmtp (Exim 4.52) id 1GxrQR-0007KI-Ti for emacs-devel@gnu.org; Fri, 22 Dec 2006 15:55:32 -0500 Original-Received: by ug-out-1314.google.com with SMTP id j3so3521906ugf for ; Fri, 22 Dec 2006 12:55:31 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:resent-to:resent-from:resent-date:resent-message-id:to:cc:subject:references:from:date:in-reply-to:message-id:user-agent:mime-version:content-type:sender; b=pWNTwot5NhlUFU7meBeYl4sqsXtSu6co9ofIheId9jH3h50LkFCyDFQ9AqaEhZiWocqFKFrrHpZpIVsViY836ZygzLYu6dXELvtFzu+5VW8PCzXIrtJvgo8Yzge5ZN+4d+Ol+j4yPhapfXzXW5A32asTIPUuSA80S8gTKKarwus= Original-Received: by 10.66.219.11 with SMTP id r11mr14372216ugg.1166820930104; Fri, 22 Dec 2006 12:55:30 -0800 (PST) Original-Received: from chrislap.local ( [89.176.28.156]) by mx.google.com with ESMTP id y7sm16183709ugc.2006.12.22.12.55.28; Fri, 22 Dec 2006 12:55:28 -0800 (PST) Original-Received: from localhost.localdomain ([127.0.0.1] helo=chrislap.local) by chrislap.local with esmtp (Exim 4.63) (envelope-from ) id 1GxrQN-0006mm-2p; Fri, 22 Dec 2006 21:55:27 +0100 Resent-To: Eli Zaretskii , storm@cua.dk (Kim F. Storm), mindcooler@gmail.com, emacs-devel@gnu.org Resent-From: Chris Moore Resent-Date: Fri, 22 Dec 2006 21:55:26 +0100 Resent-Message-ID: Original-To: Eli Zaretskii In-Reply-To: (Eli Zaretskii's message of "Wed\, 20 Dec 2006 21\:05\:40 +0200") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.91 (gnu/linux) Resent-Date: Fri, 22 Dec 2006 21:55:27 +0100 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:64127 Archived-At: Eli Zaretskii writes: > There's nothing to prevent a parallel build from compiling 2 Lisp > files at the same time, is there? Yes, there is, at least on GNU/Linux make isn't used to determine which Lisp files to compile. During bootstrapping, it's done using the shell: [...] for el in [...] $els; do echo Compiling $el; [...]; done and during 'make recompile', it's done using emacs itself: ../src/emacs -batch --no-site-file --multibyte --eval (batch-byte-recompile-directory 0) /home/chris/programs/emacs2/lisp Neither of these will honour make's --jobs=2 flag. In fact using --jobs=2 makes the build ever so slightly slower on this dual-core machine.