Re: [Xenomai-help] no-brainer realtime issue

[Philippe Gerum <rpm@xenomai.org>]

Steven Seeger wrote:
> Turning on the SMI disable stuff, rebuilding the kernel and modules, and
> installing everything to my board did not solve the latency problem. My
> numbers keep growing as the latency tester runs.
> 
> Any other ideas? I've never had an rtai/xenomai/fusion/whatever system fail
> basic realtime requirements like this before in the 4 years I've been using
> this geode board.
> 

Yous seem to be running in periodic timing mode, with a default slice of 125 us.
Which parameters are passed to rt_task_set_periodic() and rt_task_wait_period() in 
your sampling task?

> Steven
> 
> 
> On 2/17/06 6:28 AM, "Philippe Gerum" <rpm@xenomai.org> wrote:
> 
> 
>>Steven Seeger wrote:
>>
>>>Maybe I didn't set it up right? I followed the instructions in the
>>>README.INSTALL file. Attached is my linux tree's .config.
>>>
>>
>>Try enabling the SMI workaround (Xeno's "Machine" menu), just in case, since
>>you 
>>are running a Geode box.
>>
>>
>>>Steven
>>>
>>>
>>>
>>>>Until those numbers are sane, there is no point in trying anything else
>>>>though.
>>>>
>>>>Ok, the testsuite clearly fails on your board, and something in the current
>>>>setup 
>>>>prevents any real-time use. .config would help.
>>>>
>>>
>>>
> 
> 


-- 

Philippe.