See TODOS in codebase:

• standardize num docs
• make sure we validate/check db hash after end of tests
• Decouple read/write times: Consider adding a 3rd bool for the read stage to decouple read and write timings. Can do it through the test or directly in the command. The command could return read & write times separately for all commands.
• Track the elapsed times in all threads, not just the slowest so we can identify which thread is slowest and why.