On Mon, 9 Dec 2013, Paul E. McKenney wrote: > On Thu, Dec 05, 2013 at 09:06:55PM +0000, Christoph Lameter wrote: > > Once we have the per cpu patchset merged we could do the following [it > > even works without that patchset but the __this_cpu ops will not do > > preemption checks]. Would this work? > > Looks plausible at first glance. But are you really seeing performance > issues with this code? It is only compiled into the kernel when you build > with CONFIG_RCU_BOOST=y -- are you actually using that for your workloads?
I have not done any benchmarking. Just looking for more use cases for the this_cpu ops. There is a lot of use of per cpu operations in the rcu code which seems to be areas in which these operations can help. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
