From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [216.168.135.169] (helo=starfish.geekisp.com) by linuxtogo.org with esmtp (Exim 4.69) (envelope-from ) id 1Li70U-0001ve-MW for openembedded-devel@openembedded.org; Fri, 13 Mar 2009 14:00:59 +0100 Received: (qmail 16097 invoked by uid 1003); 13 Mar 2009 13:00:37 -0000 Received: from localhost (HELO localhost.localdomain) (philip@opensdr.com@127.0.0.1) by mail.geekisp.com with SMTP; 13 Mar 2009 13:00:37 -0000 Message-ID: <49BA58F3.6050701@balister.org> Date: Fri, 13 Mar 2009 09:00:35 -0400 From: Philip Balister User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: openembedded-devel@lists.openembedded.org References: <1236900736.26901.8.camel@grond.atmel.com> <200903131347.11719.marcin@juszkiewicz.com.pl> In-Reply-To: <200903131347.11719.marcin@juszkiewicz.com.pl> Subject: Re: PARALLEL_MAKE X-BeenThere: openembedded-devel@lists.openembedded.org X-Mailman-Version: 2.1.11 Precedence: list Reply-To: openembedded-devel@lists.openembedded.org List-Id: Using the OpenEmbedded metadata to build Distributions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Mar 2009 13:00:59 -0000 X-Groupsio-MsgNum: 8400 Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms090307000508030504060400" --------------ms090307000508030504060400 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Marcin Juszkiewicz wrote: > Dnia pi=C4=85tek, 13 marca 2009 o 00:32:16 Ulf Samuelsson napisa=C5=82(= a): >=20 >> Is there any activity to make this more useful? >> Just managed to install a Core i7 machine, which speeded >> up my Buildroot build from about 4 hours to less than 1 hour. >> (There was an error in the build right at the end, >> so it could have been downto 40 minutes or so) >> Building the cross compiler took 10 minutes with "make -j 16" >> compared to 1-2 hours on a P4 @ 3GHz. >=20 > I use core2quad at home and dual quadcore Xeon at one client office.=20 > Both are 100% busy during my builds. On my quad I use=20 > PARALLEL_MAKE=3D"-j4" with 4 BB threads and on 8core I have 10 BBthread= s=20 > with -j12 but thats for nightly builds when no one other use this=20 > machine. Using ccache also speeds next compilations. Marcin, A while back you mentioned a program that displayed the per core CPU=20 utilization. What was it again? 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