Zero-copy network transmission with io_uring
Zero-copy network transmission with io_uring
Posted Dec 31, 2021 9:07 UTC (Fri) by Sesse (subscriber, #53779)In reply to: Zero-copy network transmission with io_uring by andresfreund
Parent article: Zero-copy network transmission with io_uring
I would assume that the dummy netdev made a copy for the non-zerocopy case, and simply never touched the data for zerocopy (ie., simulating an infinitely efficient DMA engine).