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Comparison of context switching methods for fine grain process scheduling.
| Content Provider | CiteSeerX |
|---|---|
| Author | Benner, Thomas Österling, Achim Ernst, Rolf |
| Abstract | Context switching times are a major source of overhead in medium to fine grain process scheduling. We compared three different context switching techniques for non-preemptive scheduling in context of hardware/software codesign, and found major differences in performance and code size efficiency. 1 Introduction The impact of context switching on the overall execution time of a real--time system depends on the hardware platform and on the type of constraints. While in the design of larger real-time systems, context switching time is often neglected or roughly estimated or bounded [2, 10], this is less useful in hardware/software system design with many different communication mechanisms and tasks which can have widely varying time constraints. Typical real-time operating systems show context switching times of several to tens of microseconds [2] which is large compared to hardware/software communication or hardware execution times. So, in trading off hardware and software solutions, a c... |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Fine Grain Process Context Switching Method Context Switching Time Major Difference Hardware Platform Hardware Software Codesign Overall Execution Time Code Size Efficiency Real Time System Software Communication Grain Process Different Context Major Source Many Different Communication Mechanism Real-time System Software Solution Hardware Software System Design Varying Time Constraint Non-preemptive Scheduling Hardware Execution Time |
| Content Type | Text |
