Re: Gurus, a silly question for preemptive behavior

[Paulo Marques <pmarques@grupopie.com>]

jesse wrote:
> Con:
> 
>    thank you for your prompt reply in the holiday
> season. 
> 
>    My point is: Even kernel 2.4 is not 
> preemptive, the latence should be very
> minimal.(<300ms)
> why user space application with low nice priority
> can't be effectively interrupted and holds the CPU
> resource since all user space application is
> preemptive?

If your process has got work to do and has a higher priority than other 
processes, it gets to run. If you don't want this behavior, don't give 
it such a high priority.

If you want low latency to do some quick high priority task, just do it 
quickly and relinquish the processor, instead of hogging it.

What are you trying to accomplish, anyway?

-- 
Paulo Marques - www.grupopie.com

"A journey of a thousand miles begins with a single step."
Lao-tzu, The Way of Lao-tzu