iperf is a network performance testing tool hosted here
NAPI ("New API") is a modification to the device driver packet processing framework, which is designed to improve the performance of high-speed networking. NAPI works through:
TCP testing in Linux is an continuous process. These tests are concerned with the behavior and correctness of the TCP protocol in the Linux kernel.
More will be added to this page soon.
Linux has the most RFC compliant TCP implementation. Over time this page will have more details on it's implementation and areas such as congestion control.
Linux packet generator is a tool to generate packets at very high speed
in the kernel.
This document gives a brief introduction to Generic Netlink, some simple
examples on how to use it and some recommendations on how to make the most of
the Generic Netlink communications interface. While this document does not
require that the reader has a detailed understanding of what Netlink is
and how it works, some basic Netlink knowledge is assumed. As usual, the
kernel source code is your best friend here.