Editing Scheduling (computing) (section)

===Solaris===
[[Solaris (operating system)|Solaris]] uses a multilevel feedback queue with priorities ranging between 0 and 169. Priorities 0&ndash;59 are reserved for time-shared threads, 60&ndash;99 for system threads, 100&ndash;159 for real-time threads, and 160&ndash;169 for low priority interrupts. Unlike Linux,<ref name="opensolaris-queue"/> when a process is done using its time quantum, it is given a new priority and put back in the queue. Solaris&nbsp;9 introduced two new scheduling classes, namely fixed-priority class and fair share class. The threads with fixed priority have the same priority range as that of the time-sharing class, but their priorities are not dynamically adjusted. The fair scheduling class uses CPU ''shares'' to prioritize threads for scheduling decisions. CPU shares indicate the entitlement to CPU resources. They are allocated to a set of processes, which are collectively known as a project.<ref name="Galvin"/>