This kernel includes patches useful for multmedia purposes like:
preemption, low-latency and the ability for processes to transfer their
capabilities.
The preemtion patches allow a task to be preempted anywhere within the
kernel, using spinlocks as markers for non-preemptibility regions. The
resulting system response is greatly increased, with measured average
latencies under 1ms. Andrew Morton's low-latency patches fix the
remaining points in the kernel that cause latency. The setpcap patch
allows suid root processess to transfer capabilities to non-root
processess, and so making it possible for user processes to run with
realtime priority.