Lee Revell wrote:
> On Fri, 2006-06-23 at 12:12 +0200, Pieter Palmers wrote:
>
>>> If anything else is running at 99, what happens if you lower those other
>>> processes to 98?
>>>
>>>
>> I'll have to recheck, but if I remember correcly I have done this
>> experiment. The only thing at 99 is the system timer. I tried giving it
>> a lower priority than the latency test thread, which didn't change anything.
>>
>
> OK thanks, that answers my question.
>
I found one problem at this point, which is in the latency test
application itself. Apparently it doesn't acquire the RT priority
correctly. My mistake.
When trying with rtc_wakeup I get about 40us max. Which is more what I'd
expect.
I'm going to investigate this further anyway, because I'm not really
convinced yet. In one of my previous sessions, rtc_wakeup also showed
large latency values.
TBC
Greets,
Pieter
Received on Sat Jun 24 16:15:08 2006
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