Re: Possible Xenomai 3 latency regression on arm64

On 6/15/26 10:52, Philippe Gerum wrote:
> Jan Kiszka <[email protected]> writes:
> 
>> On 15.06.26 09:35, Philippe Gerum wrote:
>>> Jan Kiszka <[email protected]> writes:
>>>
>>>> Hi all,
>>>>
>>>> it seems we got some >10% worst-case latency increase over the last
>>>> month with Xenomai head and 6.12 - that is at least the setup we use in
>>>> our long-running weekly test.
>>>>
>>>> Tonight, the RPi4 test triggered by exceeding the configured limit of
>>>> 150 µs [1]. About half a year ago, we were in 130 µs range with it [2].
>>>> x86 and beaglebone are apparently not seeing this change.
>>>>
>>>
>>> My rpi4 fried. Is the issue visible with x4 as well?
>>>
>>
>> We do not have long-running latency tests for x4 yet, do we, Tobias?
>>
> 
> Ok, I can try this on an odroid c4. Did anyone succeeded in booting a
> mainline kernel on pi5? Last time I checked, root-over-nfs was not
> possible yet.
> 

No technical input but adding [email protected] who also asked for this
SOC about a week ago.

Cite:
> For your reference, mainline Linux has added support for the BCM2712 
> SoC starting from version 6.12, and later versions such as 6.18, 
> 6.19, and 7.0 continue to support it.
> 
> Is the BCM2712 / Raspberry Pi 5 currently supported by Xenomai 3
> over the Cobalt core (including the required Dovetail interrupt
> pipeline support)? If not, is there any plan to add support in the
> near future?