On Fri, Mar 8, 2013 at 3:35 PM, Bruce Ashfield <[email protected]> wrote: > On 13-03-08 12:01 PM, Darren Hart wrote: >> >> >> >> On 03/04/2013 08:04 PM, 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/ >> >> >> Note that qemux86 doesn't support the EMGD graphics driver. You mention >> this and its license in the README, but it isn't necessary. If you are >> pulling that in, there is a problem with your recipes. > > > wow. mailing list delays are making this conversation *extremely* > painful and disjointed. > > Darren, Those that you've mentioned were from yocto kernel lab examples. I went over and cleaned them up. https://github.com/insop/meta-dl
However, at this point, I am more looking at meta-realtime that uses yocto-linux-3.8 instead as Bruce's suggestion. https://github.com/insop/meta-realtime >> >> So you are using the sched_deadline patches, but not PREEMPT_RT, is that >> right? I had always assumed sched_deadline ran on top of PREEMPT_RT (but >> I haven't every tried building it myself). > > > sched_deadline applies to mainline, right on top of CFS as a scheduler > class. So in fact, I wouldn't suggest it with preempt-rt at all at the > moment. > > Right, previously, Juri maintained sched_deadline on top of preempt-rt, but not any more. >> >> What you have here is a good experimental layer. Looking forward, please >> consider: >> >> o Incorporating sched_deadline as a kernel feature into the >> linux-yocto_3.8 kernel. We can easily add recipes to build a >> linux-yocto-deadline kernel and you will get all the benefits of the >> yocto tooling, testing, bugfixing, and free forward porting. > > > Already done. I've had it in linux-yocto-3.8 since I first introduced > it. We just need the supporting userspace to easily change the > scheduler class for a process. > > Yup, two apps that can test sched_deadline is at meta-realtime now. I will prepare some script to make it easier as well. >> >> o Incorporating your tests into (poky|oe-core)/meta/recipes-rt > > > Or if they aren't fully 'core', our new meta-realtime that I'd like > to have created shortly. > I will be playing with meta-realtime at github until you create one. Please let me know if you have any other requested program on this layer. Regards, Insop _______________________________________________ yocto mailing list [email protected] https://lists.yoctoproject.org/listinfo/yocto
