On Thu, Jun 01, 2006 at 11:52:59AM +1200, Sam Vilain wrote: : The lock on entry approach will only be for non-threaded interpreters : that don't know how to do real STM.
The way I see it, the fundamental difference is that with ordinary locking, you're locking in real time, whereas with STM you potentially have the ability to virtualize time to see if there's a way to order the locks in virtual time such that they still make sense. Then you just pretend that things happened in that order. As for side-effecty ops, many of them can just be a promise to perform the op later when the transaction is committed, I suspect. Larry
