[gpderetta]

Not an expert, but my understanding is that HTM basically implements the fast path: you still need a fully fledged STM implementation as a fallback in case of interference, or even in the uncontended case if the working set doesn't fit in L1 (because of way collision for example) and the HTM always fails.

[kragen]

I'm no expert either, but maybe some other hardware feature would be more helpful to STMs than hardware TM is.