A variation of the round-robin scheduler is the regressive round-robin scheduler. This scheduler assigns
each process a time quantum and a priority. The initial value of a time quantum is 50 milliseconds. However,
every time a process has been allocated the CPU and uses its entire time quantum (does not block for I/O), 10
milliseconds is added to its time quantum, and its priority level is boosted. (The time quantum for a process
can be increased to a maximum of 100 milliseconds.) When a process blocks before using its entire time
quantum, its time quantum is reduced by 5 milliseconds, but its priority remains the same.