Logarithmic heavy traffic error bounds in generalized switch and load balancing systems
Logarithmic heavy traffic error bounds in generalized switch and load balancing systems
复制标题
广义交换机和负载平衡系统中的对数大流量错误界限
DOI:
10.1017/jpr.2021.82
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发表时间:
2022
影响因子:
1
通讯作者:
Maguluri, Siva Theja
中科院分区:
文献类型:
--
作者:
Hurtado-Lange, Daniela;Varma, Sushil Mahavir;Maguluri, Siva Theja
Motivated by applications to wireless networks, cloud computing, data centers, etc., stochastic processing networks have been studied in the literature under various asymptotic regimes. In the heavy traffic regime, the steady-state mean queue length is proved to be , where is the heavy traffic parameter (which goes to zero in the limit). The focus of this paper is on obtaining queue length bounds on pre-limit systems, thus establishing the rate of convergence to heavy traffic. For the generalized switch, operating under the MaxWeight algorithm, we show that the mean queue length is within of its heavy traffic limit. This result holds regardless of the complete resource pooling (CRP) condition being satisfied. Furthermore, when the CRP condition is satisfied, we show that the mean queue length under the MaxWeight algorithm is within of the optimal scheduling policy. Finally, we obtain similar results for the rate of convergence to heavy traffic of the total queue length in load balancing systems operating under the ‘join the shortest queue’ routeing algorithm.
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期刊:
Measurement and Modeling of Computer Systems
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SIAM Journal of Control and Optimization
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arXiv.org
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