“With the latest release of his real time kernel patches, Ingo
Molnar announced a new feature, ‘a complete rework of the
high-resolution timers framework, from Thomas Gleixner, called
‘ktimers’.’ Ingo explains that the end-effect of the new timer
framework is a ‘much more deterministic HRT engine.’ He goes on to
explain how this works:“‘Under the ktimer framework the HR (and posix) timers live in a
separate domain, have their own (per-CPU) rbtree to stay scalable
and deterministic even with a high number of timers…'”