Re: proposed FAQ entry for rt.wiki.kernel.org

[Darren Hart <dvhltc@us.ibm.com>]

Clark Williams wrote:
> How's this:
> 
> Q. How does Real-Time Linux (aka the PREEMPT_RT patch) improve
> "latency"?

Works for me

>> I'm not sure the bit about "spinlocks have a context to return to" makes 
>> sense in an elevator-type pitch, might be too low level, and detract 
>> from the high-level message?
>>
> 
> Well, some of the people that have asked were actually looking for a
> more technical description than was available in, ahem, Marketing
> Literature. So I guess I was attempting to straddle that fence. I will
> re-arrange that last sentence to put prioritization first or may be
> split it into two sections. How about this:
> 
> This means that interrupt service order may be prioritized by
> assigning appropriate realtime priorities to the interrupt threads. 

I was specifically thinking that the balance between application and 
interrupt thread should be mentioned, while this seems to focus on the 
relative priorities of just the interrupt threads.

-- 
Darren Hart
IBM Linux Technology Center
Real-Time Linux Team