Piers Cawley <[EMAIL PROTECTED]> wrote: > Leopold Toetsch <[EMAIL PROTECTED]> writes:
>> You seem to be mixing up different issues with that statement. Using >> plain Continuation PMCs for returning just from subroutines was dead >> slow, w or w/o COWed stacks. > But when a Continuation is simply a collection of pointers to the tops > of the various stacks (and I really do think it should include P1 in > that list...) will it really be that slow? I'm surprised. You are missing object creation overhead. P1 and P2 are in the saved P-register frame. And finally: I really don't know, if a Continuation needs just pointers to the stacks (and to which) or (COWed) copies (to which). *Will please somebody describe all the semantics of Continuation usage.* leo
