24 Jun
2006
24 Jun
'06
9:51 a.m.
Lee Revell wrote:
On Fri, 2006-06-23 at 12:12 +0200, Pieter Palmers
wrote:
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
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.