Boost Statechart vs. Meta State Machine

Question

Apparently boost contains two separate libraries for state machines: Statechart and Meta State Machine (MSM). The taglines give very similar descriptions:

• Boost.St

Answer 1

While coding my own PPP implementation I used Statechart for three reasons: 1) Statechart is simpler and has clearer documentation; 2) I really dislike UML :)

Boost docs say MSM is at least 20 times faster, but compiles pretty slow for large FSM.