From owner-freebsd-questions@FreeBSD.ORG Mon Nov 25 19:34:29 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 08E918CB for ; Mon, 25 Nov 2013 19:34:29 +0000 (UTC) Received: from mail-ie0-f170.google.com (mail-ie0-f170.google.com [209.85.223.170]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id D120E2375 for ; Mon, 25 Nov 2013 19:34:28 +0000 (UTC) Received: by mail-ie0-f170.google.com with SMTP id qd12so7738001ieb.1 for ; Mon, 25 Nov 2013 11:34:21 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-type:content-disposition:user-agent; bh=hhWWsMyqn9odlcyiLdaTGNqi4boMrBB6TiZlC2/USfQ=; b=fGFrMh2N/FqtDwV1hz3uQL4BHFajEvKdu2/bYgaquPzevUM65D+Uu2zry90vc0UoTB sYBpLxmlYLU9Foz6Rcm8tRRO21LLRQKZ2AORUuY5fPi87p6ilQ7psU/16RXM0QUpllLk Aiq79wRwKSyQwjZuSCKT/8j14MADDwD7RykexQjG+fdYhZ2ohdQPMWICnM76ebgb/uZW jCpiX5S2GyMVnkiN5R0vN9cTPNjA1apVZXgWvE2nRLkC++7RXH7Eep+qTNu7Dogistlu LeiMu/TBlx1KKbSH1tST8mB4iE+FvXWWzrLo2ONJmFttaA4U1w7X8CVDmC44kqN07WZ/ bH4A== X-Gm-Message-State: ALoCoQmIIRdShmI+yYrsr00tDFKhHh/qfyPRTnYP1DoIjKcCljBXDrNDTiI3D9M5C9dVVXKZ9n8l X-Received: by 10.50.119.4 with SMTP id kq4mr14216669igb.40.1385408061751; Mon, 25 Nov 2013 11:34:21 -0800 (PST) Received: from localhost (itcom245.staff.itd.umich.edu. [141.213.135.249]) by mx.google.com with ESMTPSA id j16sm27261429igf.6.2013.11.25.11.34.19 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 25 Nov 2013 11:34:19 -0800 (PST) Date: Mon, 25 Nov 2013 14:34:18 -0500 From: William Bulley To: FreeBSD Mailing List Subject: using make(1) with "-j" option Message-ID: <20131125193418.GS15424@itcom245.staff.itd.umich.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Nov 2013 19:34:29 -0000 In the modern era with multiple CPUs the norm, I was interested in finding a way to speed up compiles from source (of the kernel and the various ports I use). According to the man page "make(1)" the "-j max_jobs" option: Specify the maximum number of jobs that make may have running at any one time. Turns compatibility mode off, unless the -B flag is also specified. While building the kernel today, I was successful using "make -j 4" on a four CPU system. Later on, on the same system, I was unable to build any ports from source using either "# make -j 4 install" or "# make -j 2 install" commands. What am I missing here? Regards, web... -- William Bulley Email: web@umich.edu 72 characters width template ----------------------------------------->|