[meta-freescale] linux-imx-3.10.9 with preempt-rt patch

Jacob Kroon jacob.kroon at gmail.com
Mon Mar 24 10:10:09 PDT 2014

On Mon, 24 Mar 2014, Otavio Salvador wrote:

> On Mon, Mar 24, 2014 at 1:52 PM, Fabio Estevam <festevam at gmail.com> wrote:
>> Hi Jacob/Otavio,
>> On Mon, Mar 24, 2014 at 1:48 PM, Jacob Kroon <jacob.kroon at gmail.com> wrote:
>>> I have done some testing using various tools from "rt-tests" package.
>>> The patch does show a big improvement when looking at the numbers from
>>> "cyclictest", max. peak of ~150 us in wakeup-latency for a high-priority
>>> realtime thread (compared to milliseconds even with a PREEMPT kernel), while
>>> loading the system in all the possible ways I could think of,
>>> including utilizing the GPU. This was on a Wandboard Solo.
>> What about creating a recipe for rt kernels, so that folks interested
>> in real-time kernel could easily test it under meta-fsl-arm?
> I like this idea. Jacob, are you up for the task? I can help if you want.

Yes, it sounds like a good idea. I'll come up with a
patch for a linux-imx-rt recipe and post it for review here.


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