Basic HTML version of Foils prepared May 19 99

Foil 14 Priorities and Scheduling

From Elements of Concurrent Programming in Java Tango Group Internal Technology Seminars -- Spring 99. by Lukasz Beca
1 Priority based scheduling queue
2 Default: thread has the same priority as the thread that created it
3 setPriority method changes a priority
4 yield method relinquishes control
5 Algorithm:
  • two or more threads with the highest priority: pick arbitrary one
  • lower priority thread is preempted if a higher priority thread needs to be run
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