Method and apparatus for adjusting sleep time of fixed high-priority threads

A computer recordable medium having a computer program product for adjusting the sleep time of fixed high-priority threads, said computer recordable medium comprising:

• program code means for providing a sleep function capable of putting a fixed high-priority thread to sleep within a time-window, during which low-priority threads can be executed;
• program code means for, after a sleep request has been made by a fixed high-priority thread via said sleep function, determining whether or not said fixed high-priority thread is awoken before a requested sleep duration under said sleep request;
• program code means for, in a determination that said fixed high-priority thread is awoken before a requested sleep duration under said sleep request, increasing a number of tasks for said fixed high-priority thread to perform in order to delay a start sleep time of said fixed high-priority thread from a point within a first time-window in which said sleep request was made to an end boundary of said first time-window.