It's important to know how MMOG database scales at an early stage. For it is often found as a bottleneck at a later stage, and is hard to improve. So, we propose a method to simulate MMOG database with a test hardware, with which one can estimate actual load and scalability.

We introduce some indicators like users/min to see how one scenario work. Also, we design a Smart Pointer to have our data model operations flexible, which deals with multiplicities of lock, allocation, and persistence. Then, we make tests for various scenario, and check how simulation works practically.