This point is an obvious corollary to the previous section, queries that are delightfully parallel run faster on machines with more cores because the work can be divided among more concurrent threads.

In this thesis, discuss the safety and fairness in concurrent system, and point out its importance when multithreading accessing the critical resources.

Aiming at this point, it introduces the theory of Concurrent Branch Patterns, and puts forward Concurrent Branch Patterns Mining based on the Maximum forward Path and gives relevant arithmetic.