From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.chez-thomas.org (hermes.mlbassoc.com [64.234.241.98]) by mx1.pokylinux.org (Postfix) with ESMTP id 7AB8E4C80BD4 for ; Thu, 20 Jan 2011 10:02:33 -0600 (CST) Received: by mail.chez-thomas.org (Postfix, from userid 999) id 1B91A16605AC; Thu, 20 Jan 2011 09:02:33 -0700 (MST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on hermes.chez-thomas.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=4.0 tests=ALL_TRUSTED,BAYES_00 autolearn=unavailable version=3.3.1 Received: from hermes.chez-thomas.org (hermes_local [192.168.1.101]) by mail.chez-thomas.org (Postfix) with ESMTP id 4C50916605A6; Thu, 20 Jan 2011 09:02:32 -0700 (MST) Message-ID: <4D385C98.80304@mlbassoc.com> Date: Thu, 20 Jan 2011 09:02:32 -0700 From: Gary Thomas User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc13 Thunderbird/3.1.7 MIME-Version: 1.0 To: Joshua Lock References: <4D3850B3.2030100@mlbassoc.com> <1295539103.2487.4.camel@scimitar> In-Reply-To: <1295539103.2487.4.camel@scimitar> Cc: poky@yoctoproject.org Subject: Re: What's taking so long?? X-BeenThere: poky@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Poky build system developer discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Jan 2011 16:02:33 -0000 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 01/20/2011 08:58 AM, Joshua Lock wrote: > On Thu, 2011-01-20 at 08:11 -0700, Gary Thomas wrote: >> My target platform/distro uses IPK and I have a local kernel >> recipe which is based on the pre linux-yocto recipe that was >> used by Poky. When I build& package the kernel, I have >> terrible performance - this is new, it used to be just fine. >> >> Here's what I mean. Building for my kernel and timing the >> various steps, e.g. >> % time bitbake virtual/kernel -c compile >> >> My kernel: >> compile 1m49s >> deploy 0m16s >> populate_sysroot 0m38s >> package 23m20s >> >> Just to compare, using OTS Poky for BeagleBoard: >> compile 5m07s >> deploy 0m36s >> populate_sysroot 0m29s >> package 5m02s >> >> That's a five-fold difference in the time to build& package >> the kernel. > > This is a significant performance impact. Thanks for taking the time to > do some profiling. > > I've filed a bug http://bugzilla.pokylinux.org/show_bug.cgi?id=666 and > we'll get someone looking into that as a matter of priority. > >> >> What am I doing [wrong?] that makes this so? >> Would it be better if I switched to RPM like the BB is using? >> > > It looks like the slow paths are in package format independent code, so > probably not. Thanks. I wonder what has changed as this used to be quite snappy! -- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------