With the work we were performing, the 2x improvement may not have been necessary, but it was useful. We could run everything on 1 box and keep up with roughly 3

With the work we were performing, the 2x improvement may not have been necessary, but it was useful. We could run everything on 1 box and keep up with roughly 30-50% system utilization continuously. Had we used the STL version, we would have needed another machine, and may not have been able to use mmaps to share data between cores.