Computer energy-saving method and system combined with temperature sensing

Abstract

The invention discloses a computer energy-saving method and system combined with temperature sensing, and designs and realizes a method for controlling a working state of a CPU (Central Processing Unit) in an internet data center by taking energy saving as an aim. The method comprises the following steps that total energy consumption of a computer operation fixed working load in time T is obtained, wherein the total energy consumption comprises calculation energy consumption of a computer and refrigeration energy consumption obtained according to a temperature; in the time t, the CPU of a computer is at a dormant state and the frequency of the CPU under a work state is the lowest frequency meeting the fixed work load; the time t is increased and the step 1 is circularly carried out until the frequency of the CPU under the work state is up to 100%; a load strategy with the lowest total energy consumption is an optimal load strategy and is used for saving energy when the computer is actually operated. According to the computer energy-saving method and system, the calculation energy consumption and the refrigeration energy consumption of the computer or a data center server can be effectively reduced.

Description

technical field [0001] The present invention designs and implements a method for controlling the working state of a CPU for the purpose of saving energy in an Internet data center, and optimizes the power consumption of the data center by taking two parameters as a measure. Background technique [0002] With the gradual rise of the Internet, the computing performance of the data center is getting stronger and stronger. At the same time, its energy consumption is getting more and more attention. For the entire computer network, there are many places to improve energy saving. Due to the CPU in the computer Power consumption accounts for a major part of the entire computer, and changes in computer power consumption are mainly caused by changes in CPU power consumption. Therefore, we mainly discuss the part of CPU energy saving. [0003] At the micro level of hardware: With the gradual increase in the performance requirements of contemporary data center computers, the demand fo...

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Problems solved by technology

[0005] In the current data center, the method of reducing power consumption is usually a combination of macro and micro. By improving the Internet network topology of the data center, reasonably controlling bandwidth and allocating resources, and designing virtual machine allocation and scheduling algorithms, the data center Load balancing, shutting down nodes with low performance and power consumption in the network, and rationalizing the load of the data center can significantly reduce the computing power consumption of the data center. The lowest computing power consumption of the server as a whole is used as a measure of algorithm optimization, or the temperature is used as a reference to measure the contribution of the reduction of cooling power consumption of the air conditioner in the data center, so that the computing power consumption of the data center is reduced to the theoretical minimum. However, for the above The current technology, when customizing the corresponding strategy, only considers the contribution of macro virtual machine scheduling and micro adjustment to the reduction of computing power consumption, and does not consider the impact of the corresponding policy design on the temperature of the computer room. However, maintaining the temperature of the computer room is stable. Cooling power consumption usually accounts for the second largest proportion of total power consumption in the data center, such as figure 1 As shown, in a large data center, the power consumption of air conditioning and cooling can reach 40% of the overall power consumption of the data center. Therefore, the strategy of simply considering the customization of computing power consumption may cause the power consumption of air conditioning and cooling in the data center and the computing power consumption of servers. The overall change of the sum is not optimal. Therefore, in the design of data center energy-saving algorithms, it is also necessary to combine server computing power consumption and cooling power consumption when selecting strategies for computer energy conservation.

[0006] The invention patent "A method of computer energy saving based on load statistics" discloses a method of computer energy saving based on load statistics. The system structure includes: load analysis unit (1), policy generation unit (2), system timing tasks (3 ), the system frequency reduction interface (4), the operating system performs statistical analysis on the system load within a certain period of time, by reducing the frequency of the computer CPU when the system is low-loaded and starting the operating system timing task function, the CPU can be used within a specific period of time. It runs at a low frequency, so as to prolong the life of computer components and reduce computer energy consumption. However, this invention also uses load statistics to predict computer load. consider

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