Messages in this thread | | | Date | Fri, 30 Oct 2009 15:45:28 -0700 | From | "Paul E. McKenney" <> | Subject | Re: PREEMPT_RCU on UP |
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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
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