From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtprelay-b12.telenor.se ([62.127.194.21]) by linuxtogo.org with esmtp (Exim 4.72) (envelope-from ) id 1RG8Ve-0001dS-Id for openembedded-devel@lists.openembedded.org; Tue, 18 Oct 2011 14:11:06 +0200 Received: from iph2.telenor.se (iph2.telenor.se [195.54.127.133]) by smtprelay-b12.telenor.se (Postfix) with ESMTP id 2424BEA8BF for ; Tue, 18 Oct 2011 14:05:17 +0200 (CEST) X-SENDER-IP: [83.227.57.13] X-LISTENER: [smtp.bredband.net] X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: At4vAGNqnU5T4zkNPGdsb2JhbAAMN4k8kEWOfAEBAQE3giABAQEBAgE4QBELIRYECwkDAgECATEUEwYCAQGHfLYyiBsEk32RWA X-IronPort-AV: E=Sophos;i="4.69,365,1315173600"; d="scan'208";a="496667315" Received: from c-0d39e353.011-39-73746f12.cust.bredbandsbolaget.se (HELO [10.175.196.249]) ([83.227.57.13]) by iph2.telenor.se with ESMTP; 18 Oct 2011 14:05:17 +0200 Message-ID: <4E9D6B7C.5000404@telia.com> Date: Tue, 18 Oct 2011 14:05:16 +0200 From: Ulf Samuelsson User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 To: openembedded-devel@lists.openembedded.org References: <4E9C93AB.7090705@telia.com> <20111018062814.GA3751@ad.chargestorm.se> In-Reply-To: <20111018062814.GA3751@ad.chargestorm.se> Subject: Re: Performance measurement: Building openembedded-core with and without overclocking on C-i7 2600K 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: Tue, 18 Oct 2011 12:11:06 -0000 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 2011-10-18 08:28, Anders Darander skrev: > * Ulf Samuelsson [111017 22:45]: >> If anyone is interested... > Build stats are always interesting... ;) > >> Same machine in two different configurations. >> .........................................................#1...........................#2 >> P8Z68V Pro >> Core-i7 2600K @ 3.4 GHz..................4.4 GHz >> 8 GB @ ...........................................1333 >> MHz...............1640 MHz >> 1TB WD Black 7200 RPM >> Ubuntu 11-10 >> Almost all source code already in source directory > This would severely restrict the usefulness of the comparison. I'd guess > that this means that in one case the source will be downloaded, while > it'll already be downloaded in the second test. Could you redo the > statistics with all sources downloaded? I had already built it once before running the first test then updated and I think one additional package was downloaded over a 100 MBps line so it affects a little, but not too much. I think the conclusion: Increasing the CPU speed by 30% and the memory frequency by 20% gives 10-15% faster build time is OK. >> Building meta-toolchain is 13% faster with overclocking. > Was the overclocking test run after the non-overclocking? > > Cheers, > Anders > -- Best Regards Ulf Samuelsson