Alan Burlison wrote: > I think you'll find that both GC *and* reference counting scheme will > require the heay use of mutexes in a MT program. There are several concurrent GC algorithms that don't use mutexes -- but they usually depend on read or write barriers which may be really hard for us to implement. Making them run well always requires help from the OS memory manager and that would hurt portability. (If we don't have OS support it means auditing everybody's XS code to make sure they use wrappers with barrier checks on all writes. Yuck.) - KenThread Previous | Thread Next