Adaptive reservations in a Linux environment

Author

Cucinotta, T. ; Palopoli, L. ; Marzario, L. ; Lipari, G. ; Abeni, L.

Author_Institution

Scuola Sup., Pisa, Italy

fYear

2004

fDate

25-28 May 2004

Firstpage

238

Lastpage

245

Abstract

In this paper, we address the problem of adaptively reserving the CPU to concurrent soft real-time tasks, in order to meet target quality of service requirements. First, we present two new techniques inspired to the idea of stochastic control. Then, we present a flexible and modular software architecture suitable for adaptive scheduling, realised as a minimally invasive set of modifications to the Linux kernel. Finally, we show experimental results that validate our approach and prove its effectiveness in the context of multimedia applications.

Keywords

adaptive scheduling; multimedia computing; operating system kernels; processor scheduling; quality of service; resource allocation; software architecture; CPU adaptive reservation; Linux kernel; adaptive scheduling; concurrent soft real-time task; multimedia application; quality of service; software architecture; stochastic control; Application software; Feedback; Linux; Mathematical model; Multimedia systems; Processor scheduling; Quality of service; Real time systems; Streaming media; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Real-Time and Embedded Technology and Applications Symposium, 2004. Proceedings. RTAS 2004. 10th IEEE

ISSN

1545-3421

Print_ISBN

0-7695-2148-7

Type

conf

DOI

10.1109/RTTAS.2004.1317269

Filename

1317269