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Decentralized proportional load balancing

Anselmi, J.; Walton, N.S. (2016-01-01)

Load balancing is a powerful technique commonly used in communication and computer networks to improve system performance, robustness and fairness. In this paper, we consider a general model capturing the performance of ...

The economics of the cloud: Price competition and congestion

Anselmi, J.; Ardagna, D.; Lui, J.C.S.; Wierman, A.; Xu, Y.; Yang, Z. (2014-12-31)

[No abstract available]

Generalized Nash equilibria for SaaS/PaaS Clouds

Anselmi, J.; Ardagna, D.; Passacantando, M. (2014-12-31)

Cloud computing is an emerging technology that allows to access computing resources on a pay-per-use basis. The main challenges in this area are the efficient performance management and the energy costs minimization. In ...

Efficiency of simulation in monotone hyper-stable queueing networks

Anselmi, J.; Gaujal, B. (2014-12-31)

We consider Jackson queueing networks with finite buffer constraints (JQN) and analyze the efficiency of sampling from their stationary distribution. In the context of exact sampling, the monotonicity structure of JQNs ...

Ergodic transition in a simple model of the continuous double auction

Radivojevic, T.; Anselmi, J.; Scalas, E.

(2014-12-31)

We study a phenomenological model for the continuous double auction, whose aggregate order process is equivalent to two independent M/M/1 queues. The continuous double auction defines a continuous-time random walk for trade ...

Heavy-traffic revenue maximization in parallel multiclass queues

Anselmi, J.; Casale, G. (2013-12-31)

Motivated by revenue maximization in server farms with admission control, we investigate the optimal scheduling in parallel processor-sharing queues. Incoming customers are distinguished in multiple classes and we define ...

Closed queueing networks under congestion: Nonbottleneck independence and bottleneck convergence

Anselmi, J.; D'Auria, B.; Walton, N. (2013-12-31)

We analyze the behavior of closed multiclass product-form queueing networks when the number of customers grows to infinity and remains proportionate on each route (or class). First, we focus on the stationary behavior and ...

The price of forgetting in parallel and non-observable queues

Anselmi, J.; Gaujal, B. (2011-12-31)

We consider a broker-based network of non-observable parallel queues and analyze the minimum expected response time and the optimal routing policy when the broker has the memory of its previous routing decisions. We provide ...

Competition yields efficiency in load balancing games

Anselmi, J.; Ayesta, U.; Wierman, A. (2011-12-31)

We study a nonatomic congestion game with N parallel links, with each link under the control of a profit maximizing provider. Within this 'load balancing game', each provider has the freedom to set a price, or toll, for ...

Energy-aware capacity scaling in virtualized environments with performance guarantees

Anselmi, J.; Verloop, I.M. (2011-12-31)

We investigate the trade-off between performance and power consumption in servers hosting virtual machines running IT services. The performance behavior of such servers is modeled through Generalized Processor Sharing (GPS) ...