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QoS Aware Job Scheduling in a Cluster-Based Web Server for Multimedia Applications

9 years 27 days ago
QoS Aware Job Scheduling in a Cluster-Based Web Server for Multimedia Applications
We propose a cluster-based web server where a few computing nodes are separately reserved for high-performance computing applications, such as multimedia, SSL, and CGI. As an example application, we consider a multimedia server that dynamically generates video units to satisfy the bit rate and bandwidth requirements of a variety of clients. To perform QoS aware scheduling of multiple multimedia jobs on the computing servers, a two-step algorithm is proposed. The first step is to fairly schedule multimedia streams to satisfy each stream’s QoS requirement; and the second step is to balance the workload among heterogeneous computing nodes in the cluster. We propose a new Quota-based Adaptive CoScheduling (QACS) algorithm that greatly reduces delay jitter by eliminating the out-of-order departure for outgoing streams, as well as achieves high throughput in a heterogeneous cluster. Experimental results show that the proposed scheduling technique gives adequate QoS guarantees to multiple...
Jiani Guo, Laxmi N. Bhuyan, Raj Kumar, Sujoy Basu
Added 25 Jun 2010
Updated 25 Jun 2010
Type Conference
Year 2005
Where IPPS
Authors Jiani Guo, Laxmi N. Bhuyan, Raj Kumar, Sujoy Basu
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