Title:
A Network Co-processor-Based Approach to Scalable Media Streaming
A Network Co-processor-Based Approach to Scalable Media Streaming
Author(s)
Krishnamurthy, Rajaram B.
Schwan, Karsten
West, Richard
Rosu, Marcel-Catalin
Schwan, Karsten
West, Richard
Rosu, Marcel-Catalin
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Abstract
This paper presents the embedded construction and experimental results for a
media scheduler on i960 RD equipped I2O Network Interfaces (NI) used for
streaming. We utilize the Distributed Virtual Communication Machine (DVCM)
infrastructure developed by us which allows run-time extensions to provide
scheduling for streams that may require it. The scheduling overhead of such
a scheduler is 65 microseconds with the ability to stream MPEG video to
remote clients at requested rates. Moreover, placement of scheduler action
Close to the network on the Network Interface(NI) allows tighter coupling
of computation and communication, eliminating traffic from the host bus and
memory subsystem and allowing increased host CPU utilization for other
tasks. This makes media scheduling a viable and strong candidate for
offloading on NIs.
Architectures to build scalable media scheduling servers are explored - by
distributing media schedulers and media stream producers among NIs within a
server and clustering a number of such servers using commodity hardware and
software.
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Date Issued
2000
Extent
298971 bytes
Resource Type
Text
Resource Subtype
Technical Report