Nested Interrupt Analysis of Low Cost and High Performance Embedded Systems Using GSPN Framework

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概要

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• Interrupt service routines are a key technology for embedded systems. In this paper, we introduce the standard approach for using Generalized Stochastic Petri Nets (GSPNs) as a high-level model for generating CTMC Continuous-Time Markov Chains (CTMCs) and then use Markov Reward Models (MRMs) to compute the performance for embedded systems. This framework is employed to analyze two embedded controllers with low cost and high performance, ARM7 and Cortex-M3. Cortex-M3 is designed with a tail-chaining mechanism to improve the performance of ARM7 when a nested interrupt occurs on an embedded controller. The Platform Independent Petri net Editor 2 (PIPE2) tool is used to model and evaluate the controllers in terms of power consumption and interrupt overhead performance. Using numerical results, in spite of the power consumption or interrupt overhead, Cortex-M3 performs better than ARM7.

• 2010-09-01

著者

• Lin Cheng-min

  Department Of Computer And Communication Engineering & Graduate Institute Of Electrical Engineer

• Lin Cheng-min

  Department Of Computer And Communication Engineering & Graduate Institute Of Electrical Engineer

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