Hi!
> My company (Enea) wants to create test case(s) that verifies that you 
> can run an application without having ticks going on the CPU that the 
> application runs on. This would utilize the new nohz_full feature 
> available from kernel version 3.10.
> 
> I cannot find any existing test case in LTP in this area, so I assume I 
> have to create the test case myself.

I'm not aware of such tests in LTP.

> One catch is that the current nohz_full implementation actually 
> generates 1Hz. So part of the test could be to verify that we actually 
> get 1Hz rather than full tick speed. It would also be possible to 
> support the experimental patch from Kevin Hilman to actually turn ticks 
> off for real. The test code code check whether the patch is applied and 
> based on it expect 0Hz or 1Hz ticks.
> 
> Would LTP be a good place for such tests?

Certainly.

I've wrote (about two months ago) a short guide on writing LTP testcases
and contributing the code have look at:

https://github.com/linux-test-project/ltp/wiki/Test-Writing-Guidelines

And if you have any questions don't hesitate to ask on LTP mailing list.

-- 
Cyril Hrubis
chru...@suse.cz

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