Traffic Control - Next Generation (tcng) is a revision of the Linux network traffic control infrastructure that aims to make the configuration language less cryptic, and provide better interfaces for software and hardware accelerators. It also includes tcsim, a simulator for the traffic control subsystem, which can be used with old (tc) and new (tcng) configurations.
ABISS (Active Block I/O Scheduling System) is an extension for the Linux kernel that implements priorities for disk IO operations, and that provides a means for applications to use these priorities to obtain real-time (e.g. a guaranteed data rate) and prioritized best-effort services. The kernel code is supported by a user space daemon and a library.