[Xenomai] Have you ever used the Linux Test Project (LTP) realtime testsuite with Xenomai?

[Xenomai] Have you ever used the Linux Test Project (LTP) realtime testsuite with Xenomai?

[Giorgio Buffa]

Hello list!
I'm having a look at the Linux Test project
(https://github.com/linux-test-project/ltp), which provides a collection of
tools for testing the Linux kernel and related features. It also provides a
real-time test suite that has been written to test functionality of the
PREEMPT_RT patch.

This real-time test suite uses the POSIX API, so I'm thinking to use it to
further benchmark my Xenomai installations (both single- and dual- kernel).
Have you ever used this realtime testsuite with Xenomai? Or do you only
rely on the testsuite provided by Xenomai itself?

Kind regards,
Giorgio Buffa

Re: [Xenomai] Have you ever used the Linux Test Project (LTP) realtime testsuite with Xenomai?

[Gilles Chanteperdrix]

On Wed, Jul 01, 2015 at 05:35:08PM +0200, Giorgio Buffa wrote:
> Hello list!
> I'm having a look at the Linux Test project
> (https://github.com/linux-test-project/ltp), which provides a collection of
> tools for testing the Linux kernel and related features. It also provides a
> real-time test suite that has been written to test functionality of the
> PREEMPT_RT patch.
> 
> This real-time test suite uses the POSIX API, so I'm thinking to use it to
> further benchmark my Xenomai installations (both single- and dual- kernel).
> Have you ever used this realtime testsuite with Xenomai? Or do you only
> rely on the testsuite provided by Xenomai itself?

LTP is regularly used with Xenomai, but as part of the dohell
script, generating Linux load.

What you want to do, I guess, is to recompile the rt-tests for the
Xenomai POSIX API. In that case, you should not underestimate what
this task means, it means more than just recompiling with the
xeno-config flags, see:
https://xenomai.org/2014/08/porting-a-linux-application-to-xenomai-dual-kernel/

-- 
					    Gilles.
https://click-hack.org

[Xenomai] R: Have you ever used the Linux Test Project (LTP) realtime testsuite with Xenomai?

[Giorgio Buffa]

> LTP is regularly used with Xenomai, but as part of the dohell script,
> generating Linux load.
> 
> What you want to do, I guess, is to recompile the rt-tests for the Xenomai
> POSIX API. In that case, you should not underestimate what this task
means,
> it means more than just recompiling with the xeno-config flags, see:
> https://xenomai.org/2014/08/porting-a-linux-application-to-xenomai-dual-
> kernel/

Hi Gilles!
Thank you for the pointer to the porting guide, it is very useful!

Yes, you're right: using the rt-tests requires more work than just a
re-compilation with 'xeno-config' flags. BTW some of these tests are
interesting, I think I will investigate on that matter a little more.

Thank you again and king regards,
Giorgio Buffa.