[poky] PREEMPT_RT support
Darren Hart
dvhart at linux.intel.com
Mon Dec 6 15:06:27 PST 2010
I'm looking at how to best support PREEMPT_RT. We have a few things in
the works which prevent the ideal scenario (which is just a new recipe
using the preempt_rt branch in linux-yocto).
2.6.34 never had an -rt patch. The WR folks created one that builds and
is undergoing review from tglx - but that doesn't appear to be near the
top of his stack. 2.6.37 is still pending an -rt patch, also blocked on
-tglx.
I'm thinking of creating a meta-rt layer which would provide a latest
-rt kernel and the rt-tests suite along with a non-graphical image
definition that facilitates latency detection and rt performance
measurement. poky-image-rt-test or something along those lines.
Any objection to this approach? As we will eventually move these recipes
into the core poky recipes, I'd suggest we put this in an
"experimental/meta_rt" git repository.
Thoughts?
--
Darren Hart
Yocto Linux Kernel
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