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: Sat, 23 Dec 2006 00:39:50 +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 1166830816 25842 80.91.229.10 (22 Dec 2006 23:40:16 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 22 Dec 2006 23:40:16 +0000 (UTC) Cc: mindcooler@gmail.com, emacs-devel@gnu.org, storm@cua.dk Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Dec 23 00:40:14 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 1Gxtzo-0003d2-6i for ged-emacs-devel@m.gmane.org; Sat, 23 Dec 2006 00:40:12 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Gxtzn-00048j-NP for ged-emacs-devel@m.gmane.org; Fri, 22 Dec 2006 18:40:11 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1GxtzZ-00046J-EK for emacs-devel@gnu.org; Fri, 22 Dec 2006 18:39:57 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1GxtzX-00043q-RH for emacs-devel@gnu.org; Fri, 22 Dec 2006 18:39:57 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GxtzX-00043n-N2 for emacs-devel@gnu.org; Fri, 22 Dec 2006 18:39:55 -0500 Original-Received: from [66.249.92.172] (helo=ug-out-1314.google.com) by monty-python.gnu.org with esmtp (Exim 4.52) id 1GxtzX-0008CO-6h for emacs-devel@gnu.org; Fri, 22 Dec 2006 18:39:55 -0500 Original-Received: by ug-out-1314.google.com with SMTP id j3so3560679ugf for ; Fri, 22 Dec 2006 15:39:54 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:to:cc:subject:references:from:date:in-reply-to:message-id:user-agent:mime-version:content-type:sender; b=BZdGdx1LKXkMFrx9zhmcQOw8AgrjNVJMIvFkzInbr4xhu0KOJlPNmrPfwqCuLHGpbp7PJRJGM38Xz+ykfw5WDHfR+pZdTVatRThywZGlPFlL8gVY00sja6YqyfdVDZw/xZJXpZm834StOk3vlkZaHN3u1K+50cRKaiN/k/e1yyw= Original-Received: by 10.67.20.3 with SMTP id x3mr1387563ugi.1166830794194; Fri, 22 Dec 2006 15:39:54 -0800 (PST) Original-Received: from chrislap.local ( [89.176.28.156]) by mx.google.com with ESMTP id h1sm13758030ugf.2006.12.22.15.39.53; Fri, 22 Dec 2006 15:39:53 -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 1GxtzS-0007kL-Mn; Sat, 23 Dec 2006 00:39:50 +0100 Original-To: Eli Zaretskii In-Reply-To: (Eli Zaretskii's message of "Fri\, 22 Dec 2006 23\:37\:44 +0200") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.92 (gnu/linux) 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:64140 Archived-At: Eli Zaretskii writes: >> From: Chris Moore >> 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. >> > It's true that lisp/Makefile.in doesn't give much chance to exploit > parallelism, but it's not true that no parallelism is possible there. > `compile', `recompile', and `cvs-update' have prerequisites that can > be produced in parallel. OK maybe it's possible, but it doesn't seem to happen to any significant extent. While compiling C code, both cores are used, and while compiling Lisp code one of them is pretty much idle. That's what I see, anyway.