Hi Robert,
Sorry, I should have been more careful labelling them - those are 2.5.34-preempt
vs 2.5.34-preempt-rcu numbers. I did them first because rcu-poll-preempt
kernel has a conditinal branch in fast path and hence more interesting.
I will publish the vanilla vs rcu_poll reflex numbers in a few minutes
from now.
The preemption support have been in RCU for a very long time. IIRC, I added
it in around 2.5.14.
See http://marc.theaimsgroup.com/?l=linux-kernel&m=102084967517192&w=2
Our OLS paper and presentation too deals with preemption -
http://www.rdrop.com/users/paulmck/rclock/rcu.2002.07.08.pdf
http://www.rdrop.com/users/paulmck/rclock/rclock.OLS.2002.07.08a.pdf
Thanks
-- Dipankar Sarma <dipankar@in.ibm.com> http://lse.sourceforge.net Linux Technology Center, IBM Software Lab, Bangalore, India. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/