Table 2 Online evaluation metrics
From: SAViNE: social network analysis - inspired content delivery network deployment and experimentation
Response time | User-perceived service response time. |
Throughput | Surrogate throughput measured on the |
server wireless interfaces. | |
CPU load | The average load of the surrogate server |
aggregated over a pre-specified time window. | |
Cache hit ratio | The ratio of the number of times |
that content is served from the cache to | |
the number of requests for content. | |
Client requests per | The average number of connected clients |
surrogate | per surrogate. |
Average distance per | The average distance of the connected clients |
surrogate | from the surrogate. |
SNR | Signal-to-noise ratio is a relative measure of |
the received signal power compared to the noise | |
power in the wireless channel. |