Table 1 Summary of Workload Characteristics.
Parameter | Model/Value(s) |
|---|---|
Request Arrival | Poisson Process (default) |
| Â | Weibull Distribution with shape |
Request Arrival Rate | Variable, Default is 40 Req./min |
Server Capacity | 200 to 750 channels |
Video Access | Zipf-Like |
Video Skew ( | 0.1 to 0.6, Default = 0.271 |
Number of Videos | Variable, Default is 120 |
Video Length | Fixed-Length Video Workload (Default) |
|  |  with length of 60 to 180 min (same for all videos), |
|  |  Default = 120 min |
| Â | Variable-Length Video Workload: |
|  |  with lengths randomly in the range: 60 to 180 min |
Waiting Tolerance Model | A, B, C, Default is A |
Waiting Tolerance Mean ( | Variable, Default is |
Flash Crowds | The peak arrival rate is |
| Â | two movie lengths and flash crowds arrival rate is variable. |
| Â | Default: no flash crowds |
to 0.9
)
)
 sec
times the normal rate for a period of