On 28 August 2012 20:11, Julie Anderson <[email protected]> wrote:
> Over 10GbE ZeroMQ claims a latency of 33 micros from > end-to-end<http://www.zeromq.org/results:10gbe-tests-v031>. > If you subtract 2 micros from "over-the-wire" transit time it is still 31 > micros. That's a lot! > > But if you make a simple test sending one packet from one side to the > other, the total time is around 11 micros, or three times faster. > > What does ZeroMQ do to introduce 3 times more latency to the messages? > > That document is 4 years old, hardware is faster today and low-microsecond RTT requires a user-space stack to bypass kernel overheads which Mellanox didn't have then. http://www.mellanox.com/content/pages.php?pg=products_dyn&product_family=106&menu_section=69 -- Steve-o
_______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
