KernelTrap: Realtime Linux Security Module, 2.6 Latency

“Lee Revell resubmitted a small patch written by Torben Hohn and
Jack O’Quin to provide selected nonroot users with the ability to
run tasks with realtime permissions, utilizing the Linux Security
Modules (LSM) framework. The patch provides for three methods of
control, an ‘all’ option which permits all local processes the
ability to request realtime privileges, a ‘gid’ option which allows
such privileges to be restricted to members of a specific group,
and an ‘mlock’ option to specify whether or not a realtime process
can lock pages in RAM and prevent them from being swapped
out…”

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