Re: PREEMPT_RCU on UP

[Paul E. McKenney]

On Tue, Oct 27, 2009 at 09:10:02AM -0700, Patrik Kluba wrote:
> 
> Hi!
> 
> Does the preemptible RCU implementation have better performance (lower
> latency?) than the classic RCU implementation on embedded uniprocessor
> systems? I can't find any information about this in Documentation/.

I would expect that you would get the best latencies on UP by using
the -rt patchset and preemptible RCU.  I don't know that anyone has
carefully measured the combination of vanilla CONFIG_PREEMPT kernel
and preemptible RCU on UP.

							Thanx, Paul
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/