On Tue, Sep 18, 2012 at 6:52 PM, Greg Hendershott <greghendersh...@gmail.com> wrote: >> I agree with others that the cost of capturing continuations is the >> culprit in this case. The run-time system has support for faster >> continuations that work in constrained settings (currently used to >> implement futures), and it might be possible to make those >> continuations kick in work for a typical generator, but I'm not sure. > > IIUC continuations are also the foundation for Racket threads.
Certain aspects of the continuation implementation are also used in parts of the `future` system, but continuations are *not* used to implement `thread` and associated facilities in Racket, and the relationship between continuations and futures is entirely under the hood. -- sam th sa...@ccs.neu.edu ____________________ Racket Users list: http://lists.racket-lang.org/users
