Fault tolerant systems and methods incorporating a minimum checkpoint interval

A method of regulating checkpointing in an active active fault tolerant system, the method comprising:

• receiving a request from a client through a network at a primary computer of the active active fault tolerant system;
• copying, by the primary computer, the request from the client to a secondary computer of the active active fault tolerant system;
• processing the request from the client, using the primary computer, to generate a primary computer result;
• processing the copy of the request from the client, using the secondary computer, to generate a secondary computer result;
• comparing the primary computer result and the secondary computer result to obtain a comparison metric;
• determining a minimum checkpoint interval by running one or more simulations under various conditions and for different use cases and tracking which minimum checkpoint threshold results in performance gains for each of the foregoing;
• determining whether the minimum checkpoint interval has been met or exceeded;
• and
• if the minimum checkpoint interval has not been met or exceeded, delay initiating a checkpoint process from primary computer to secondary computer, wherein checkpoint processes are performed to maintain fault tolerance when managing a plurality of client requests.