Name
Abstract | ||
|---|---|---|
Kernel-based group unicast has been suggested as an efficient mechanism for transmitting the same data to multiple recipients. In this paper, we present a new system call, sendgroup(), which also supports per-recipient private data, but only uses a single inkernel copy of the shared data. We assess the performance of the new system call using micro-benchmarks on three different operating systems. Further, we incorporate sendgroup() into a popular multimedia server and demonstrate an efficiency improvement of ~45% in a representative live-broadcasting scenario. These results show that the new system call is applicable in real-world scenarios, and that its usage can lead to significant performance improvements. Moreover, we demonstrate how Amdahl's Law, when applied to the results of the micro-benchmarks, along with precise analysis of the cost of sending packets, can be used to accurately predict the impact of sendgroup() on this server. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1145/1496046.1496053 | NOSSDAV |
Keywords | Field | DocType |
per-recipient private data,shared data,efficiency improvement,efficient mechanism,real world,significant performance improvement,new system call,different operating system,popular multimedia server,new system,kernel-based group unicast,virtual environment | Kernel (linear algebra),Virtual machine,Peer-to-peer,Computer science,Amdahl's law,Network packet,Computer network,Real-time computing,Multimedia servers,System call,Unicast | Conference |
Citations | PageRank | References |
1 | 0.36 | 17 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Elad Lahav | 1 | 1 | 0.36 |
| Martin Karsten | 2 | 69 | 6.96 |
| Tim Brecht | 3 | 526 | 49.87 |
| Weihan Wang | 4 | 19 | 6.08 |
| Tony Zhao | 5 | 1 | 0.36 |