A Bandwidth Inheritance Algorithm for Real-Time Task Synchronization in Open Systems

Authors:
Gerardo Lamastra;Giuseppe Lipari;Luca Abeni
Affiliations:
-;-;-
Venue:
RTSS '01 Proceedings of the 22nd IEEE Real-Time Systems Symposium
Year:
2001

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Abstract

In this paper, we present algorithm BandWidth Inheritance(BWI), a new scheduling strategy that extends the bandwidthreservation approach to systems where tasks can interact through shared resources.The propose d algorithm provides temporal isolation between independent groups of tasks, andenables a schedulability analysis for guaranteeing the performance of real-time tasks.After showing that BWI is thenatural extensionof the well-known Priority Inheritance Protocol to dynamic reservation systems, a formal analysis of the algorithmis presented, and simple guarantee tests for hard real-time tasks are proposed.