•A PERC thread
honors the priority specified by the developer
–Priorities
are never automatically “aged”
•Every PERC
synchronization lock implements priority inheritance
•All
lock and wait queues are maintained in priority order
•Optional
use of extended priority range (1-32)
•These semantics
are offered across all targeted operating systems: ETS, INTEGRITY, Linux, LynxOS, Nucleus, OSE, RTX, VxWorks, WinCE, Windows, QNX