What is the use case for needing to expose the individual cluster counts? What if resctrl just summed the cluster counts and presented the data as before - per L3 cache instance? I doubt that resctrl would be what applications would use to verify whether they are "well behaved" wrt NUMA.
Reinette,
My (perhaps naïve) belief is that in a cloud server environment there are many well behaved NUMA applications. Only presenting the sum would lose the detailed information from each SNC node.
-Tony