On Sat, 2005-07-09 at 09:19 +0200, Ingo Molnar wrote:

> (if your goal was to check how heavily external interrupts can influence 
> a PREEMPT_RT box, you should chrt the network IRQ thread to SCHED_OTHER 
> and renice it and softirq-net-rx and softirq-net-tx to nice +19.)
> 

This is interesting. I wonder how much tuning like this , just changing
thread priorities, which would effect the results of these tests.
PREEMPT_RT is not pre-tuned for every situation , but the bests
performance is achieved when the system is tuned. If any of these tests
rely on a low priority thread, then we just raise the priority and you
have better performance.

These other systems like Vanilla 2.6.x , and I-pipe aren't massively
tunable like PREEMPT_RT . 

Daniel 

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to