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Energy consumption represents a large percentage of the operational expenses in data centers. Most of the existing solutions for energy-aware scheduling are focusing on job distribution and consolidation between computing servers, while network characteristics are not considered. In this paper, we propose a model of power and network-aware scheduling that can be tuned to achieve energy-savings, through...
Advances in data intensive computing and high performance computing facilitate rapid scaling of data center networks, resulting in a growing body of research exploring new network architectures that enhance scalability, cost effectiveness and performance. Understanding the tradeoffs between these different network architectures could not only help data center operators improve deployments, but also...
Information centric networks (ICNs) allow content objects to be cached within the network, so as to provide efficient data delivery. Existing works on in-network caches mainly focus on minimizing the redundancy of caches to improve the cache hit ratio, which may not lead to significant bandwidth saving. On the other hand, it could result in too frequent caching operations, i.e., cache placement and...
We present an evaluation of the fault-tolerance characteristics of several important data center network topologies, including Fat-tree, DCell, HyperBCube and BCube using several metrics, including average path length, aggregated bottleneck throughput and connection failure ratio. These enable us to present an objective comparison of the network topologies under faulty conditions.
As the rapid development of P2P application, many applications based on P2P technology are produced and applied over the Internet. Therefore, searching efficiency, bandwidth utilization rate, average download time and throughput become the key issues of P2P. In order to improve the performance of P2P applications, we propose an integration of search and incentive strategy (ISI) in this paper, which...
When moving towards fully Peer-to-Peer Virtual Environments (P2P-VE), the amount of network traffic generated at each peer remains a significant concern. Multiplayer Online Games (MOG) are the largest application subset of VEs and have been shown to require high frequency of update messages and minimal network latencies. Yet, this demanding criteria must be balanced with the need to also limit the...
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