1. Progress Report 2012/4/9

2. Dimension Reduction Cpu_usage,Load_one, Load_five,Load_fifteen Byte_in,Byte_out Memory_load PCA CPU Indicator PCA Network Indicator Memory Indicator

3. Standard Metrics Three Indicators Predict Performance Auto-Scaling PCA Regress Analysis / Nearest point

4. Progress Report 2012/4/9

5. Regress Analysis

6. Result

7. Architecture Live Streaming Video Master Server Slave Server SEVER Clients multicast

8. Master server – Stores videos – Multicast streaming videos to slave servers Slave server – Receives streaming videos from master server – Provides service for clients

9. Scale Mechanism

10. Case 1 Live Streaming Video Master Server Slave Server3 Slave Server1 SEVER Clients multicast Slave Server2

11. Case 2 Live Streaming Video Master Server 1 Slave Server1 SEVER Clients multicast Slave ServerN ………. Master Server 2 Slave Server1 ………. Slave ServerN multicast Unicastp