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ESTIMEDIA
2009
Springer

The wizard of OS: a heartbeat for Legacy multimedia applications

10 years 10 months ago
The wizard of OS: a heartbeat for Legacy multimedia applications
—Multimedia applications are often characterised by implicit temporal constraints but, in many cases, they are not programmed using any specialised real-time API. These “Legacy applications” have no way to communicate their temporal constraints to the OS kernel, and their quality of service (QoS), being necessarily linked to the temporal behaviour, fails to satisfy acceptable standards. In this paper we propose an innovative way for dealing with these applications, based on the combination of an on-line identification mechanism (which extracts from high-level observations such important parameters as the execution rate) and an adaptive scheduler (specialised for legacy applications) that identifies the correct amount of CPU needed by each application. Preliminary experimental results are reported, proving the effectiveness of the proposed idea in providing a widely used multimedia player on Linux with appropriate QoS guarantees, through an appropriate choice of the scheduling p...
Tommaso Cucinotta, Luca Abeni, Luigi Palopoli, Fab
Added 26 May 2010
Updated 26 May 2010
Type Conference
Year 2009
Where ESTIMEDIA
Authors Tommaso Cucinotta, Luca Abeni, Luigi Palopoli, Fabio Checconi
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