Documenting audio specific system configurations for Ubuntu Studio 12.04 here. Listed by package name.
patched to enable threadirqs by default which in turn enables the use of the rtirq script installed with the package rtirq-init. rtirq-init is a dependency to linux-lowlatency.
config used? etc
Sets higher rtprio for audio devices. Needed only by some systems that otherwise are unable to get acceptable audio operations.