Energy accounts for a significant fraction of the operational costs of a data center and data center owners are increasingly interested in moving towards power proportional designs. However, we show that current power proportional solutions are inherently limited in the energy savings they can offer; the reason is that they focus on managing the data center IT equipment (disks, servers) and neg...

Data centers are changing fast. The rapid increase of reliance on cloud computing, particularly in the context of “big data” applications, inevitably leads to the following fact: data centers must constantly update and adapt to the increased user requirements. This fact becomes more evident if we consider today’s cloud environments. The users of these environments have very strict requirements:...

Data center applications pose challenges with respect to their performance and energy requirements. These applications are mostly network oriented applications that are executed in data centers. The energy usage of a data center becomes more important as it scales and, thus, it approaches its physical limitations. The expectation of achieving maximum performance, in terms of latency and through...

While today’s data centers are multiplexed across many non-cooperating applications, they lack effective means to share their network. Relying on TCP’s congestion control, as we show from experiments in production data centers, opens up the network to denial of service attacks and performance interference. We present Seawall, a network bandwidth allocation scheme that divides network capacity b...

To enable optical interconnect fluidity in next-generation data centers, we propose adaptive transmission based on machine learning a wavelength-routing network. We consider programmable transmitters that can apply N possible code rates to connections predicted bit error rate (BER) values. classify the BER, employ preprocessing algorithm feed traffic neural network classifier. demonstrate signi...

With the development of agricultural production technology, characteristics that appear in the farmland information such as diversity, polytropy and dispersity. In order to solve the problems of obtaining quickly and long-distance transmission the farmland information, the paper proposes a farmland data acquisition system based on the GPRS technology. The system exerts GPRS network of the china...