From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sssup.it (ms01.sssup.it [193.205.80.99]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id A324FE0147E for ; Thu, 7 Mar 2013 20:02:55 -0800 (PST) Received: from [50.131.243.51] (account j.lelli@sssup.it HELO [192.168.1.33]) by sssup.it (CommuniGate Pro SMTP 5.3.14) with ESMTPSA id 79547198; Fri, 08 Mar 2013 05:02:53 +0100 Message-ID: <513962E9.4000804@sssup.it> Date: Thu, 07 Mar 2013 20:02:49 -0800 From: Juri Lelli User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130221 Thunderbird/17.0.3 MIME-Version: 1.0 To: Insop Song References: <513810E4.2040506@windriver.com> <51389F4E.8070204@windriver.com> In-Reply-To: Cc: yocto@yoctoproject.org Subject: Re: A question on adding a new program to a new meta layer X-BeenThere: yocto@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Discussion of all things Yocto Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Mar 2013 04:02:56 -0000 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi, On 03/07/2013 01:43 PM, Insop Song wrote: > Hi Bruce, > > >> What do you have in your "defconfig" ? I'm about to push patches that >> will make enabling sched_dealine a KERNEL_FEATURE option, which makes >> it even easier to use. >> > > Here is my defconfg > https://github.com/insop/meta-dl/blob/sched-dl-V7/recipes-kernel/linux/linux/defconfig > > I've asked this to Juri, too. So this is for the config for sched_deadline > "Every defconfig kernel should compile and work > fine (given HZ=1000, NO_HZ not set and HRTIMERS=y)" > > And here are the CONFIG that should set (Juri, please let us know if > I miss anything) > ------ > CONFIG_EXPERIMENTAL = y > CONFIG_CGROUPS = y > CONFIG_CGROUP_SCHED = n > CONFIG_HIGH_RES_TIMERS = y > CONFIG_PREEMPT = y > CONFIG_PREEMPT_RT = y > CONFIG_HZ_1000 = y > > # CONFIG_NO_HZ is not set > I actually have: CONFIG_HIGH_RES_TIMERS = y CONFIG_PREEMPT = y CONFIG_HZ_1000 = y # CONFIG_NO_HZ is not set all the other options are not required (anymore, as the PREEMPT_RT, since SCHED_DEADLINE is currently based on 3.8-rc7). Thanks, - Juri > ------ > >> But in the meantime, if you want to enable the support on a yocto BSP, >> you can change your "defconfig" to be "sched-deadline.cfg" and only >> put the kernel options required to enable the feature. > > I will pick up yocto-3.8 bb file from "master" branch and will try > this way shortly. > > Regards, > > Insop > >> >> Cheers, >> >> Bruce >> >> >>> >>> PV = "3.8" >>> -PR = "dl7" >>> +PR = "dl" >>> >>> KSRC ?= "" >>> S = '${@base_conditional("KSRC", "", "${WORKDIR}/git", "${KSRC}", d)}' >>> >>> Thank you. >>> >>> Insop >>> >>> On Wed, Mar 6, 2013 at 8:00 PM, Bruce Ashfield >>> wrote: >>>> >>>> On 13-03-05 1:54 AM, Insop Song wrote: >>>>> >>>>> >>>>> Hi, >>>>> >>>>> I am preparing a new meta layer for testing and promoting a >>>>> sched_deadline scheduler, called "meta-dl". I am planning to add >>>>> scheduler testing tools and different kernel versions as well. >>>>> - http://insop.github.com/meta-dl/ >>>> >>>> >>>> >>>> FYI: I've already merged and staged sched_dl in linux-yocto_3.8: >>>> >>>> >>>> http://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto-3.8/log/?h=standard/edf >>>> >>>> I'll be supporting it there as well, so it makes sense to coordinate >>>> our efforts around kernels, configurations and benchmarks. >>>> >>>> Juri and I talked about this @ ELC a few weeks ago (I've added >>>> him to the cc as well), and rather than hiding sched_deadline >>>> kernel support in a custom kernel layer, I'd like to try and get >>>> more eyes on it via linux-yocto .. so if we can all coordinate our >>>> efforts here, that would be much better. >>>> >>>> Cheers, >>>> >>>> Bruce >>>> >>>>> >>>>> With the help of hands-on kernel lab (thank you Tom and Darren), I am >>>>> able to make kernel with sched_deadline enabled. >>>>> >>>>> >>>>> Now, I am having some trouble of adding testing tools to this meta-dl, >>>>> and hope I can get some help from you. >>>>> >>>>> - problem: adding a new software into my meta-dl layer >>>>> >>>>> - symtom and questions? >>>>> 1. bitbake core-image-minimal (normal image build) won't include the >>>>> additional program that I listed in .bb file below >>>>> 2. If I do "bitbake schedtool-dl -c install" it builds and install, >>>>> but at "i586" location instead of my machine staging rootfs >>>>> (dl-qemux86) >>>>> >>>>> >>>>> >>>>> - Here is my .bb file that pulls an additional program. >>>>> >>>>> >>>>> https://github.com/insop/meta-dl/blob/sched-dl-V7/recipes-tools/schedtool-dl/schedtool-dl.bb >>>>> === >>>>> DESCRIPTION = "schedtool-dl (scheduler test tool) for deadline >>>>> scheduler" >>>>> HOMEPAGE = "https://github.com/insop/schedtool-dl" >>>>> SECTION = "base" >>>>> LICENSE = "GPLv2" >>>>> LIC_FILES_CHKSUM = >>>>> "file://Makefile;endline=55;md5=e4b4e8ed9c2132e1d727a1bb5e3bd984" >>>>> PR = "r1" >>>>> >>>>> SRC_URI = "git://github.com/insop/schedtool-dl.git;protocol=git" >>>>> SRCREV = "${AUTOREV}" >>>>> >>>>> S = "${WORKDIR}/git" >>>>> >>>>> do_compile() { >>>>> oe_runmake >>>>> } >>>>> >>>>> do_install() { >>>>> oe_runmake install DESTDIR=${D} >>>>> } >>>>> >>>>> PARALLEL_MAKE = "" >>>>> >>>>> BBCLASSEXTEND = "native" >>>>> >>>>> COMPATIBLE_MACHINE_dl-qemux86 = "dl-qemux86" >>>>> ==== >>>>> >>>>> >>>>> - I've updated my conf/layer.conf file to include above file >>>>> https://github.com/insop/meta-dl/blob/sched-dl-V7/conf/layer.conf >>>>> ==== >>>>> # We have a conf and classes directory, add to BBPATH >>>>> BBPATH := "${BBPATH}:${LAYERDIR}" >>>>> >>>>> # We have a recipes directory, add to BBFILES >>>>> BBFILES := "${BBFILES} ${LAYERDIR}/recipes-*/*/*.bb \ >>>>> ${LAYERDIR}/recipes-*/*/*.bbappend" >>>>> >>>>> BBFILE_COLLECTIONS += "dl-qemux86" >>>>> BBFILE_PATTERN_dl-qemux86 := "^${LAYERDIR}/" >>>>> BBFILE_PRIORITY_dl-qemux86 = "6" >>>>> ===== >>>>> >>>>> >>>>> >>>>> Thank you. >>>>> >>>>> Regards, >>>>> >>>>> Insop >>>>> >>>>> >>>>> - ref: >>>>> 1. sched_deadline: >>>>> https://events.linuxfoundation.org/events/linuxcon-europe/song >>>>> 2. sched_deadline: >>>>> >>>>> >>>>> http://events.linuxfoundation.org/images/stories/slides/elc2013_kobayashi.pdf?a >>>>> _______________________________________________ >>>>> yocto mailing list >>>>> yocto@yoctoproject.org >>>>> https://lists.yoctoproject.org/listinfo/yocto >>>> >>>> >>>> >>> _______________________________________________ >>> yocto mailing list >>> yocto@yoctoproject.org >>> https://lists.yoctoproject.org/listinfo/yocto >>> >>