For reads we get linear scaling out to 64 cores. Using cache-aligned data structures plays a big part in that for NUMA. (At the moment that's the largest machin

For reads we get linear scaling out to 64 cores. Using cache-aligned data structures plays a big part in that for NUMA. (At the moment that's the largest machine we have in our lab.) For writes, there's basically no scaling. Write amplification is logN, proportional to tree height.