Networking Stack

The OSv networking stack originates from FreeBSD as of circa 2013 but has since been heavily modified to implement Van Jacobson's "network channels" design, to reduce the number of locks and lock operations. For more theory and high-level design details please read the "Network Channels" chapter of the OSv paper.

This Wiki instead, focuses on the code and where these design ideas are implemented. It still touches just a tip of "the iceberg" which is the code of the networking stack located mostly under the bsd/ subtree.

Slow Path vs Fast Path