Real-Time Java™ Platform Programming

Chapter 5. Priority Scheduling

• Scheduling Terms

• Execution Sequences

• Preemption

• Fixed versus Dynamic Priority

• Priority Inversion

• Why 32 Priorities?

• Problems with Priority Scheduling

The central issue of real-time programming is getting things done on time. That breaks down into two separate issues:

• Designing, coding, and analyzing real-time code so it predictably executes in the required interval.

• Ensuring that the resources such as CPU time are allocated so real-time activities get enough time and resources to meet their deadlines.

Chapters 2 and 3 dealt with issues that affect predictable performance. Scheduling addresses the allocation of resources.