cyclictest + cobalt

cyclictest + cobalt

[Rui Queiroz]

Hi,

I have no experience with Xenomai and I was wondering if someone could
clarify if cyclictest is included in Xenomai 3.1?
Here [1] says "cyclictest is part of the Xenomai test suite..." but I could
not confirm it.

If I simply install the rt-tests package and run cyclictest will it take
advantage of the cobalt "kernel" by default or do I need to preform some
extra steps (activate a posix skin etc)

Thank you


[1] http://manpages.ubuntu.com/manpages/groovy/en/man1/cyclictest.1.html

Re: cyclictest + cobalt

[Pierre FICHEUX]

AFAIK cyclictest uses the POSIX skin.

The Xenomai version is based on rt-tests 0.92 (current version is 2.1).

I do prefer using "latency" for Xenomai.

Regards


Le jeu. 1 juil. 2021 à 16:24, Rui Queiroz via Xenomai <xenomai@xenomai.org>
a écrit :

> Hi,
>
> I have no experience with Xenomai and I was wondering if someone could
> clarify if cyclictest is included in Xenomai 3.1?
> Here [1] says "cyclictest is part of the Xenomai test suite..." but I could
> not confirm it.
>
> If I simply install the rt-tests package and run cyclictest will it take
> advantage of the cobalt "kernel" by default or do I need to preform some
> extra steps (activate a posix skin etc)
>
> Thank you
>
>
> [1] http://manpages.ubuntu.com/manpages/groovy/en/man1/cyclictest.1.html
>


-- 

Pierre FICHEUX -/- CTO Smile ECS, France -\- pierre.ficheux@smile.fr
                             http://www.smile.fr
                             https://smile.eu/fr/offres/embarque-iot
I would love to change the world, but they won't give me the source code

Re: cyclictest + cobalt

[Rui Queiroz]

When you say

> The Xenomai version is based on rt-tests 0.92 (current version is 2.1).

Do you mean that there is an embedded cyclictest?

I could not find any trace of cyclictest. I had to install it using apt and
the rt-tests package.

I see a huge difference when executing cyclictest after booting with the
xenomai kernel vs the vanilla but how can I be sure that it is using cobalt?



Pierre FICHEUX via Xenomai <xenomai@xenomai.org> escreveu no dia quinta,
1/07/2021 à(s) 17:20:

> AFAIK cyclictest uses the POSIX skin.
>
> The Xenomai version is based on rt-tests 0.92 (current version is 2.1).
>
> I do prefer using "latency" for Xenomai.
>
> Regards
>
>
> Le jeu. 1 juil. 2021 à 16:24, Rui Queiroz via Xenomai <xenomai@xenomai.org
> >
> a écrit :
>
> > Hi,
> >
> > I have no experience with Xenomai and I was wondering if someone could
> > clarify if cyclictest is included in Xenomai 3.1?
> > Here [1] says "cyclictest is part of the Xenomai test suite..." but I
> could
> > not confirm it.
> >
> > If I simply install the rt-tests package and run cyclictest will it take
> > advantage of the cobalt "kernel" by default or do I need to preform some
> > extra steps (activate a posix skin etc)
> >
> > Thank you
> >
> >
> > [1] http://manpages.ubuntu.com/manpages/groovy/en/man1/cyclictest.1.html
> >
>
>
> --
>
> Pierre FICHEUX -/- CTO Smile ECS, France -\- pierre.ficheux@smile.fr
>                              http://www.smile.fr
>                              https://smile.eu/fr/offres/embarque-iot
> I would love to change the world, but they won't give me the source code
>

Re: cyclictest + cobalt

[Pierre FICHEUX]

Cyclictest is included in the rt-tests package.

https://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git/

rt-tests is provided with Buildroot or Yocto (well known build systems for
embedded Linux).


Le jeu. 1 juil. 2021 à 18:42, Rui Queiroz <rqueiroz@dei.uc.pt> a écrit :

> When you say
>
>> The Xenomai version is based on rt-tests 0.92 (current version is 2.1).
>
> Do you mean that there is an embedded cyclictest?
>
> I could not find any trace of cyclictest. I had to install it using apt
> and the rt-tests package.
>
> I see a huge difference when executing cyclictest after booting with the
> xenomai kernel vs the vanilla but how can I be sure that it is using cobalt?
>
>
>
> Pierre FICHEUX via Xenomai <xenomai@xenomai.org> escreveu no dia quinta,
> 1/07/2021 à(s) 17:20:
>
>> AFAIK cyclictest uses the POSIX skin.
>>
>> The Xenomai version is based on rt-tests 0.92 (current version is 2.1).
>>
>> I do prefer using "latency" for Xenomai.
>>
>> Regards
>>
>>
>> Le jeu. 1 juil. 2021 à 16:24, Rui Queiroz via Xenomai <
>> xenomai@xenomai.org>
>> a écrit :
>>
>> > Hi,
>> >
>> > I have no experience with Xenomai and I was wondering if someone could
>> > clarify if cyclictest is included in Xenomai 3.1?
>> > Here [1] says "cyclictest is part of the Xenomai test suite..." but I
>> could
>> > not confirm it.
>> >
>> > If I simply install the rt-tests package and run cyclictest will it take
>> > advantage of the cobalt "kernel" by default or do I need to preform some
>> > extra steps (activate a posix skin etc)
>> >
>> > Thank you
>> >
>> >
>> > [1]
>> http://manpages.ubuntu.com/manpages/groovy/en/man1/cyclictest.1.html
>> >
>>
>>
>> --
>>
>> Pierre FICHEUX -/- CTO Smile ECS, France -\- pierre.ficheux@smile.fr
>>                              http://www.smile.fr
>>                              https://smile.eu/fr/offres/embarque-iot
>> I would love to change the world, but they won't give me the source code
>>
>

-- 

Pierre FICHEUX -/- CTO Smile ECS, France -\- pierre.ficheux@smile.fr
                             http://www.smile.fr
                             https://smile.eu/fr/offres/embarque-iot
I would love to change the world, but they won't give me the source code

Re: cyclictest + cobalt

[Jan Kiszka]

On 01.07.21 16:23, Rui Queiroz via Xenomai wrote:
> Hi,
> 
> I have no experience with Xenomai and I was wondering if someone could
> clarify if cyclictest is included in Xenomai 3.1?
> Here [1] says "cyclictest is part of the Xenomai test suite..." but I could
> not confirm it.
> 
> If I simply install the rt-tests package and run cyclictest will it take
> advantage of the cobalt "kernel" by default or do I need to preform some
> extra steps (activate a posix skin etc)
> 
> Thank you
> 
> 
> [1] http://manpages.ubuntu.com/manpages/groovy/en/man1/cyclictest.1.html
> 

Xenomai carries a slight adjusted but likely significantly outdated
version of cyclictest in-tree [2], primarily for demonstration purposes.
The "official" test is called "latency" [3], and that one is also part
of our regular testsuite.

Jan

[2]
https://source.denx.de/Xenomai/xenomai/-/tree/master/demo/posix/cyclictest
[3] https://source.denx.de/Xenomai/xenomai/-/tree/master/testsuite/latency

-- 
Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux