From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [209.85.146.176] (helo=wa-out-1112.google.com) by linuxtogo.org with esmtp (Exim 4.69) (envelope-from ) id 1LhwMm-0003iC-6S for openembedded-devel@lists.openembedded.org; Fri, 13 Mar 2009 02:39:16 +0100 Received: by wa-out-1112.google.com with SMTP id n7so717628wag.12 for ; Thu, 12 Mar 2009 18:38:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:from:to:subject:date :user-agent:cc:references:in-reply-to:mime-version:content-type :content-transfer-encoding:message-id; bh=yz0Icwo7RlLy8uO20Fjp1of++upNCzZ9DkvFCrIu7L0=; b=vsdOObSGx4W6Inf+7393ewAefC6Jvv/lv2KJeHEDx/eYOuM8qwMtA5fbr8NgUdnZk2 aWeQCQ5y7jWDKt85Ar18WmscOvOaDja4ElsYsr3cGqHtE7bOcV/e8O5c2AJVM5qbUdvF gFMa9JOG3wMlUPx/7FWpcT56/wTxr6LG9NeRg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; b=aIpIwfTL/A64aK25zuKcREICFgCUN+TSFpYEHzecpa0TAt/nRR4FalaE6RICj87X7S zUy8sPiz07W3CXVirCuct+jKE42Rhe83DIay704XnpL4bkvnv8dapT93KQS5k+aped2Y mnkHIHgbPWhXlz6qrHq7bqep+TEpPhXdg1AmQ= Received: by 10.115.16.14 with SMTP id t14mr448060wai.185.1236908339750; Thu, 12 Mar 2009 18:38:59 -0700 (PDT) Received: from morpheus.localnet (adsl-71-146-1-99.dsl.pltn13.sbcglobal.net [71.146.1.99]) by mx.google.com with ESMTPS id j28sm1146025waf.39.2009.03.12.18.38.59 (version=SSLv3 cipher=RC4-MD5); Thu, 12 Mar 2009 18:38:59 -0700 (PDT) From: Khem Raj To: openembedded-devel@lists.openembedded.org Date: Thu, 12 Mar 2009 18:38:54 -0700 User-Agent: KMail/1.11.1 (Linux/2.6.28-9-generic; KDE/4.2.1; x86_64; ; ) References: <1236900736.26901.8.camel@grond.atmel.com> In-Reply-To: <1236900736.26901.8.camel@grond.atmel.com> MIME-Version: 1.0 Message-Id: <200903121838.58470.raj.khem@gmail.com> 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 01:39:16 -0000 X-Groupsio-MsgNum: 8395 Content-Type: multipart/signed; boundary="nextPart1311915.yv0UPo5Mpq"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit --nextPart1311915.yv0UPo5Mpq Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thursday 12 March 2009 16:32:16 Ulf Samuelsson wrote: > 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. > > Openembedded does not seem to use PARALLEL_MAKE extensively. > I have the frequency meter activated for all 8 CPUs in the Core i7, > and most of the time the CPUs seems to idle at 1.6 GHz, > with one CPU (or rarely 2) are running at the full 2.67 GHz. > > Last time I built OE on a P4@ 3 GHz it took ~40 hours > for the SAM9263, so some speedup would be nice. > Maybe we should make an effort? I use=20 PARALLEL_MAKE =3D "-j4"=20 BB_NUMBER_THREADS =3D "2" in my local.conf. I see my core 2 duo machine spawning parallel tasks. =2D-=20 Khem Raj --nextPart1311915.yv0UPo5Mpq Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEABECAAYFAkm5uS8ACgkQHnJKy6V6em79hwCggwLES6T2eGhmd5hdHhkY+qAS h8UAoIeU/qekS+EAbzdB1eIHy6PlQdpe =F8Y5 -----END PGP SIGNATURE----- --nextPart1311915.yv0UPo5Mpq--