Determine the throughput of a storage server without a storage engine

To optimize the performance of the storage server, it would be useful to know the cost of everything a storage server process has to do that is not the storage engine.

Comparing this number to the speed of a storage server with a storage engine could guide us in determining where to look for optimizations.

Start by locating the storage server process and the boundary where the storage engine is used. Measure the throughput of the server without a storage engine, then compare it with a storage-backed server to identify non-engine costs. Done means the comparison provides a useful basis for choosing performance optimizations.

Written by the indexing model from the issue text.