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Scaling BBC Streaming Concepts, Current Research, Future Goals,  Michael Sparks BBC R&D [email_address]
Streaming at the BBC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Caveat! ,[object Object],[object Object],[object Object],[object Object],[object Object]
Caveat! ,[object Object],[object Object]
What is Scalability? ,[object Object],[object Object],[object Object],[object Object]
Common Techniques ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Areas Under Research ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scaling & Software Cost ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scaling & Software Cost ,[object Object],[object Object],[object Object],[object Object],[object Object]
Scaling Network Systems ,[object Object],[object Object],[object Object],[object Object]
Kamaelia ,[object Object],[object Object],[object Object]
Other aspects to be covered ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scaling BBC Streaming ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Bandwidth issues ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Number of Servers ,[object Object],[object Object],[object Object]
Physical Space Requirements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Legal Issues ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scaling Internet Costs ,[object Object],[object Object],[object Object]
Here to Stay ,[object Object],[object Object],[object Object],[object Object],[object Object]
Hidden Assumptions ,[object Object],[object Object],[object Object]
Measuring Cost ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
License & Standards “Costs” ,[object Object],[object Object],[object Object],[object Object],[object Object]
Protocol Cost – Example ICP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Protocol Cost: Example RTCP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
So What? ,[object Object],[object Object],[object Object],[object Object]
What are we working on? ,[object Object],[object Object],[object Object],[object Object]
Server Architectures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OS Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object]
Manual Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object]
Language Based Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object]
Kamaelia: Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object]
Python Generators 1 ,[object Object],[object Object],[object Object]
Python Generators 2 ,[object Object],[object Object]
Python Generators 3 ,[object Object],[object Object],[object Object],[object Object],[object Object]
Generators – Issues, Solutions ,[object Object],[object Object],[object Object],[object Object],[object Object]
Wrapping Generators ,[object Object],[object Object]
Wrapping Generators - 2 ,[object Object],[object Object],[object Object],[object Object]
Sample Behaviour ,[object Object],[object Object]
Sample Wrapped Generator ,[object Object]
Essentials of Kamaelia's Components ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Kamaelia: Building Communication ,[object Object],[object Object],[object Object]
Scheduling Generators ,[object Object]
Postman Logic ,[object Object],[object Object],[object Object],[object Object]
Co-ordinating Assistant Tracker ,[object Object],[object Object],[object Object],[object Object],[object Object]
Writing Servers Using Generators ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Note regarding Code Examples ,[object Object],[object Object],[object Object],[object Object]
Listening for connections ,[object Object]
Listening for connections 2 ,[object Object],[object Object]
Listening for Connections 3 ,[object Object],[object Object]
Listening for Connections 4 ,[object Object]
Handling active connections ,[object Object]
Protocol handling ,[object Object],[object Object]
Select  Based Connection Tracking ,[object Object]
Connection Tracking 2 ,[object Object]
Connection Tracking 3 ,[object Object],[object Object],[object Object],[object Object]
Building a Generic Server ,[object Object],[object Object],[object Object],[object Object],[object Object]
Building a Generic Server 2 ,[object Object]
Building a Generic Server 3 ,[object Object]
Building a Generic Server 4 ,[object Object],[object Object]
Building a Generic Server 5 ,[object Object]
Interlude ,[object Object],[object Object],[object Object],[object Object]
Implementing A TCP Client ,[object Object],[object Object]
Implementing A TCP Client 2 ,[object Object]
Implementing A TCP Client 3 ,[object Object],[object Object],[object Object]
Implementing A TCP Client 4 ,[object Object]
Implementing A TCP Client 5 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Notes About the TCP Client ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Some Key Results ,[object Object],[object Object],[object Object],[object Object],[object Object]
Some Key Results ,[object Object],[object Object],[object Object]
Less Obvious Stuff ,[object Object],[object Object],[object Object],[object Object],[object Object]
More Less Obvious Stuff ,[object Object],[object Object],[object Object],[object Object],[object Object]
Kamaelia: Ongoing Work ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RTP is not a Streaming Protocol ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RTP For Streaming ,[object Object],[object Object],[object Object],[object Object]
What problem does streaming solve?
What problem does streaming solve? ,[object Object],[object Object],[object Object]
What problem does streaming solve? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Characteristics of streaming? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What problem does streaming solve? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Observations ,[object Object],[object Object],[object Object],[object Object]
Observations 2 ,[object Object],[object Object],[object Object],[object Object]
Good Transport Protocol Aspects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RTP Problems (for streaming) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RTP Problems (for streaming) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
P2P Issues ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
P2P Issues 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
P2P Issues 3 ,[object Object],[object Object],[object Object],[object Object],[object Object]
P2P Issues 4 ,[object Object],[object Object],[object Object],[object Object]
Need for simpler Media Storage ,[object Object],[object Object],[object Object],[object Object],[object Object]
Simpler Media Storage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Simpler Server Storage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
Need for a New Streaming Protocol ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Need for a New Streaming Protocol ,[object Object],[object Object],[object Object],[object Object]
Copyright License ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Scaling Streaming - Concepts, Research, Goals

  • 1. Scaling BBC Streaming Concepts, Current Research, Future Goals, Michael Sparks BBC R&D [email_address]
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