Re: PREEMPT_RT vs ADEOS: the numbers, part 1

Daniel Walker
2005-06-12T15:26:44Z

On Sun, 12 Jun 2005, Ingo Molnar wrote:

> ok, this method should work fine. I suspect you increased the parport
> IRQ's priority to the maximum on the PREEMPT_RT kernel, correct? Was
> there any userspace thread on the target system (receiving the parport
> request and sending the reply), or was it all done in a kernelspace
> parport driver?

Whatever interrupt is used should be SA_NODELAY if you want maximum
response. The interrupt would need to be validated though , not to lock
mutexes.

Daniel