Method and device for scheduling request of Cloud Data Center

A data center and request scheduling technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc.

Active Publication Date: 2017-01-04
TSINGHUA UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

According to reports, an average Google search consumes 0.0003kWh of elec

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  • Method and device for scheduling request of Cloud Data Center
  • Method and device for scheduling request of Cloud Data Center
  • Method and device for scheduling request of Cloud Data Center

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Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

[0061] Assume that the cloud service provider deploys m distributed data centers to process service requests, and these data centers are represented by a set I. The system is modeled as a discrete-time system, and the length of each timestamp is denoted by τ. For each timestamp t, the total number of requests is represented by A(t), with a i (t) to denote the number of requests dispatched to data center i at timestamp t. So:

[0062] ...

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Abstract

The invention relates to a method and device for scheduling request of Cloud Data Center. The method includes performing the following steps at each timestamp: S1, at the start time of the timestamp, obtaining the queue length for a server in each data center, S2, calculating a first objective function value in each data center, and delivering all service requests in the timestamp to data center with the largest first objective function value, S3, initializing the second objective function value to negative infinity, S4, for each operating frequency in an operating frequency set of each data center, determining optimal operating frequency and optimal operating quantity, S5, for each data center, starting a server of the optimal operating quantity determined in the S4, regulating the operating frequency of the server to the optimal operating frequency determined in the S4. Under the condition of increasing the system benefit, queue length can be reduced, and the tradeoff between system benefit and queue length can be achieved.

Description

technical field [0001] The present invention relates to the technical field of request scheduling, in particular to a request scheduling method and device for a cloud data center. Background technique [0002] With the promotion of cloud computing, many cloud services are released on the Internet. Many large-scale data centers have been developed to provide cloud services. Cloud service providers provide a variety of services and have established cloud data centers distributed in different geographical locations. These cloud data centers host a large number of services, such as video playback, social networking, and web search. In order to support the operation of these cloud computing centers, a large amount of energy is consumed every year. According to reports, an average Google search consumes 0.0003kWh of electricity, which would consume more than 32,000,000kWh of electricity a year. [0003] In order to reduce energy consumption, there are two ways: the first is to...

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Application Information

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IPC IPC(8): H04L29/08H04L12/863
CPCH04L47/50H04L67/1001H04L67/60
Inventor 林闯陈莹刘渠黄霁崴
Owner TSINGHUA UNIV
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