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Article Dans Une Revue Real-Time Systems Année : 2003

Dual-Priority versus Background Scheduling: a Path-wise Comparison

Bruno Gaujal
Nicolas Navet
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Résumé

In this paper two well-known scheduling policies for Real Time Systems, namely Background Scheduling and Dual-Priority are compared in terms of response times for Soft Real Time traffic (SRT). It is proved that, when the SRT traffic is FIFO, the Dual-Priority policy always behaves better, in the preemptive case as well as in the non-preemptive case. The proof is based on a trajectorial method. As a complementary result, some non-FIFO examples where the Background Scheduling outperforms the Dual-Priority, are given.

Dates et versions

inria-00099522 , version 1 (26-09-2006)

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Citer

Bruno Gaujal, Nicolas Navet, Jörn Migge. Dual-Priority versus Background Scheduling: a Path-wise Comparison. Real-Time Systems, 2003, 25 (1), pp.39-66. ⟨10.1023/A:1022972819457⟩. ⟨inria-00099522⟩
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