Executive shutdown

[Angelo Fraietta]

Joel Sherrill wrote:

> brian wrote:
>
>> Joel,
>>
>> Thank you for your reply,
>>
>> As part of my studies I am looking at the reuse of an application 
>> that was
>> crafted directly to a processor and looking at how it could be moved 
>> to a
>> more modern platform. Because of the close coupling possible it usd a 
>> 2ms
>> interrupt to drive it.
>
>
> With anything but POSIX signals, 2 milliseconds wouldn't be a big deal.
> A more proper RTEMS solution would be to switch to Classic API Events
> and set up a server task to receive them.  Much lower overhead.

I agree with this using my own application as an example. I am using a 
40MHz 386sx processor and at times receive interrupts at 230us for 
periods of up to 20 minutes. When I did my stress test, I actually ran 
it over a 24hour period. RTEMS powered right through it with no drama. 
BTW, I had my system configured for 1000us per tick. I have to admit, my 
thread that processed the received data from the interrupt took ages to 
empty the queue that held the data received (I have a dynamic buffer of 
10K for this purpose). RTEMS, however, had no problem receiving this 
number of interrupts

-- 
Angelo Fraietta

PO Box 859
Hamilton NSW 2303

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