The Spring Kernel: A New Paradigm for Real-Time Systems

  • Authors:
  • John A. Stankovic;Krithi Ramamritham

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Software
  • Year:
  • 1991

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Abstract

A real-time operating system kernel, called the Spring kernel, that provides some of the basic support required for large, complex, next-generation real-time systems, especially in meeting timing constraints, is presented. The approach meets the need to build predictable yet flexible real-time systems. Most current real-time operating systems contain the same basic paradigms found in time-sharing operating systems and often use a basic priority-scheduling mechanism that provides no direct support for meeting timing constraints. Spring uses two criteria to classify tasks' interaction with and effects on the environment: importance and timing requirements. Implementation experience with Spring is described.