Resource Reservations for General Purpose Applications

Luca Abeni, Luigi Palopoli, Claudio Scordino, Giuseppe Lipari

Abstract: Resource reservations are an effective technique to support hard and soft real-time applications in open systems. However, they generally focus on providing guarantees to real-time applications, without paying too much attention to the performance of non-real-time activities. In this paper, the main limitations encountered when using a conventional reservation-based scheduler for serving non-real-time tasks are described and formally analyzed. Then, a novel algorithm that overcomes these problems (called HGRUB) is proposed, and both theoretical and experimental evidence of its effectiveness is provided.