CN113568805B

CN113568805B - Real-time adjustment method and device for power consumption of server and electronic equipment

Info

Publication number: CN113568805B
Application number: CN202110655343.1A
Authority: CN
Inventors: 钟杨帆
Original assignee: Alibaba Innovation Co
Current assignee: Alibaba Innovation Co
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2024-07-30
Anticipated expiration: 2041-06-11
Also published as: CN113568805A

Abstract

The application provides a method and device for adjusting power consumption of a server in real time and electronic equipment. The method comprises the following steps in the running process of the server: based on the current fan speed, adjusting the fan speed in a current adjusting direction with a preset step length; wherein, the current adjusting direction is to increase the rotation speed of the fan or decrease the rotation speed of the fan; comparing power consumption data of the servers before and after fan rotation speed adjustment; if the power consumption data after the fan rotating speed is adjusted is smaller than the power consumption data before the adjustment, setting the adjusted fan rotating speed as the current fan rotating speed, and returning to the step of adjusting the fan rotating speed in the current adjustment direction by a preset step length; if the power consumption data after the fan rotating speed is adjusted is larger than the power consumption data before the fan rotating speed is adjusted, the adjusted fan rotating speed is set to be the current rotating speed, the current adjusting direction is updated to be the direction opposite to the original current adjusting direction, and then the step of adjusting the fan rotating speed in the current adjusting direction by a preset step length is returned.

Description

Real-time adjustment method and device for power consumption of server and electronic equipment

Technical Field

The application relates to the technical field of computers, in particular to a method and a device for adjusting power consumption of a server in real time and electronic equipment.

Background

With the continuous development of computer technology, the scale of servers is also continuously expanding in order to cope with various types of services. In the computer field, servers are configured with a wide variety of server hardware devices that vary significantly in specification, performance, lifetime, age, and operating environment requirements for the hardware devices. And the running power consumption of the server is influenced by a plurality of factors such as ambient temperature, equipment load, configuration and the like. Therefore, the power consumption of its operation is also different.

In the prior art, in order to realize the optimal configuration of the power consumption of the server, the power consumption of different server models in environments with different environment temperatures, different loads and different configurations needs to be manually tested, so that the rotating speed point of the cooling fan with better energy consumption corresponding to the server in different environment temperatures and different loads is obtained. However, since the running load, configuration and external environment temperature of the server are in a changing state, the method for determining the optimal energy consumption of the server by adopting the manual test mode has huge testing workload, and in the actual operation process, in order to adjust the energy consumption of the server to the expected low power consumption in real time, the running load, configuration and temperature change of the server need to be monitored in real time, so that the calculation amount of the server is increased intangibly, and the operation difficulty is higher.

Therefore, how to implement real-time adjustment of server power consumption is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The application provides a real-time adjustment method for power consumption of a server, which aims to solve the problems in the prior art. The application also provides a real-time adjustment device for the power consumption of the server, electronic equipment and a computer storage medium.

The application provides a real-time adjustment method for power consumption of a server, which comprises the following steps: during the operation of the server, the following steps are performed to adjust the fan for cooling the server:

Based on the current fan speed, adjusting the fan speed in a current adjusting direction with a preset step length; wherein, the current adjusting direction is to increase the rotation speed of the fan or decrease the rotation speed of the fan;

comparing the power consumption data of the server before and after the fan rotation speed adjustment;

If the power consumption data after the fan rotating speed is adjusted is smaller than the power consumption data before the fan rotating speed is adjusted, setting the adjusted fan rotating speed as the current fan rotating speed, and returning to the step of adjusting the fan rotating speed in the current adjusting direction by a preset step length;

if the power consumption data after the fan rotating speed is adjusted is larger than the power consumption data before the fan rotating speed is adjusted, the adjusted fan rotating speed is set to be the current rotating speed, the current adjusting direction is updated to be the direction opposite to the original current adjusting direction, and then the step of adjusting the fan rotating speed in the current adjusting direction by the preset step length is returned.

Optionally, before the step of adjusting the rotation speed of the fan in the current adjustment direction by a predetermined step, the method further includes:

obtaining the temperature of each device of the server;

judging whether the temperature of each device of the server is in a preset temperature range;

If the judgment result is negative, the rotating speed of the fan for cooling the server is regulated through a preset temperature regulation scheme until the temperature of each device meets a preset temperature range;

if the judgment result is yes, the step of adjusting the fan rotating speed in the current adjusting direction by the preset step length is carried out.

Optionally, the temperature of each device of the server is obtained through a temperature sensor built in each device.

Optionally, the adjusting the fan rotation speed in the current adjustment direction with a predetermined step length includes:

the step is performed at preset time intervals.

Optionally, the method further comprises:

when the server is started, according to the running environment temperature of the server, obtaining a first rotating speed of the fan which can meet the starting requirement of the server;

Initializing the first rotating speed to be the current fan rotating speed.

Optionally, the obtaining, according to the running environment temperature of the server, the first rotation speed of the fan capable of meeting the starting requirement of the server includes:

obtaining a second rotating speed capable of enabling the fan to be started normally;

obtaining a third rotating speed of the fan capable of meeting the running requirement of the server according to the running environment temperature of the server;

And selecting the larger one of the second rotating speed and the third rotating speed as the first rotating speed of the fan capable of meeting the starting requirement of the server.

Optionally, the power consumption data of the server is a sum of operation power consumption of each device of the server.

Optionally, the method further comprises: and adjusting the preset step length according to a preset step length adjustment strategy.

The application also provides a device for adjusting the power consumption of the server in real time, which is applied to the running process of the server and comprises the following steps:

The first rotating speed adjusting unit is used for adjusting the rotating speed of the fan in the current adjusting direction according to a preset step length on the basis of the rotating speed of the current fan; wherein, the current adjusting direction is to increase the rotation speed of the fan or decrease the rotation speed of the fan;

the power consumption data comparison unit is used for comparing the power consumption data of the server before and after the fan rotation speed is adjusted;

a second rotation speed adjusting unit, configured to set the adjusted rotation speed of the fan as the current rotation speed of the fan if the adjusted rotation speed of the fan is less than the pre-adjusted rotation speed of the fan, and return the step of adjusting the rotation speed of the fan in a current adjustment direction with a predetermined step size;

And the third rotating speed adjusting unit is used for setting the adjusted rotating speed of the fan as the current rotating speed and updating the current adjusting direction to be opposite to the original current adjusting direction if the power consumption data after the fan rotating speed is adjusted is larger than the power consumption data before the fan rotating speed is adjusted, and then returning to the step of adjusting the rotating speed of the fan in the current adjusting direction by a preset step length.

Optionally, the apparatus further includes:

a temperature acquisition unit configured to acquire respective device temperatures of the server;

The temperature judging unit is used for judging whether the temperature of each device of the server is in a preset temperature range;

The temperature adjusting unit is used for adjusting the rotating speed of the fan for cooling the server through a preset temperature adjusting scheme when the temperature of each device of the server is not in a preset temperature range until the temperature of each device meets the preset temperature range;

And the jump unit is used for entering the step of adjusting the rotating speed of the fan in the current adjusting direction by a preset step length when the temperature of each device of the server is in a preset temperature range.

the step is performed at preset time intervals.

Optionally, the apparatus further includes:

The rotating speed initializing unit is used for obtaining a first rotating speed of the fan capable of meeting the starting requirement of the server according to the running environment temperature of the server when the server is started; initializing the first rotating speed to be the current fan rotating speed.

The application also provides an electronic device, which is applied to the running process of the server and comprises:

A processor; and

A memory for storing a program for implementing a method for adjusting power consumption of a server, the apparatus executing the following steps after running the program by a processor:

Based on the current fan speed, adjusting the fan speed in a current adjusting direction with a preset step length; wherein, the current adjusting direction is to increase the rotation speed of the fan or decrease the rotation speed of the fan; comparing the power consumption data of the server before and after the fan rotation speed adjustment; if the power consumption data after the fan rotating speed is adjusted is smaller than the power consumption data before the fan rotating speed is adjusted, setting the adjusted fan rotating speed as the current fan rotating speed, and returning to the step of adjusting the fan rotating speed in the current adjusting direction by a preset step length; if the power consumption data after the fan rotating speed is adjusted is larger than the power consumption data before the fan rotating speed is adjusted, the adjusted fan rotating speed is set to be the current rotating speed, the current adjusting direction is updated to be the direction opposite to the original current adjusting direction, and then the step of adjusting the fan rotating speed in the current adjusting direction by the preset step length is returned.

The present application also provides a computer storage medium, wherein the computer storage medium is applied to a server operation process, the computer storage medium stores a computer program, and when the program is executed, the following steps are executed:

The application also provides a real-time adjustment method for the power consumption of the server, which comprises the following steps of:

step 1, starting a server system;

Step 2, judging whether the operation temperature of each electronic device of the server is lower than a preset temperature in real time;

If the judging result of judging whether the running temperature of each electronic device of the server is lower than the preset temperature is negative, further executing the step 3;

If the judgment result of judging whether the operation temperature of each electronic device of the server is lower than the preset temperature is yes, executing the step 4;

step 3, adjusting the rotating speed of the cooling fan through a control algorithm built in the server until the running temperature of each electronic device in the server is in a preset temperature range;

step 4, obtaining the current rotating speed S1 of the cooling fan and the current average power consumption W1 of the server system;

Step 5, lifting the rotating speed S1 of the cooling fan by a preset step length, wherein the rotating speed of the cooling fan after lifting is set to S2, and S2=S1+the preset step length;

step 6, recording average power consumption data W2 of the system after the rotation speed of the cooling fan is increased;

Step 7, judging whether the power consumption data W2 after the rotation speed of the cooling fan is increased is smaller than the power consumption data W1 before the rotation speed is increased;

if the power consumption data W2 after the rotation speed of the cooling fan is increased is smaller than the power consumption data W1 before the rotation speed is increased, executing the step 8;

if the power consumption data W2 after the rotation speed of the cooling fan is increased is larger than the power consumption data W1 before the rotation speed is increased, executing the step 9;

step 8, recording the current fan rotation speed s1=s2, the current average power consumption w1=w2 of the system, and returning to the step 5;

Step 9, recording the current fan rotation speed S1=S2, and the current average power consumption W1=W2 of the system;

Step 10, reducing the rotation speed S1 of the cooling fan by a preset step, wherein the reduced rotation speed of the cooling fan is set as S3, and S3=S1-the preset step;

step 11, recording the average power consumption W3 of the system after the rotation speed of the cooling fan is reduced;

step 12, judging whether the power consumption data W3 after the rotation speed of the cooling fan is reduced is smaller than the power consumption data W1 before the cooling fan is reduced;

Step 13 is executed if the power consumption data W3 after the cooling fan rotation speed is reduced is smaller than the power consumption data W1 before the cooling fan rotation speed is reduced;

If the power consumption data W3 after the cooling fan rotation speed is reduced is larger than the power consumption data W1 before the cooling fan rotation speed is reduced, executing the step 14;

step S13, adjusting the current fan rotation speed s1=s3, the current average power consumption w1=w3 of the system, and returning to execute step 10;

Step S14, the current fan rotation speed s1=s3 is adjusted, the current average power consumption w1=w3 of the system is calculated, and step 4 is executed.

step 1, starting a server system;

step3, adjusting the rotating speed of the cooling fan through a PID control algorithm or other control algorithms built in the server until the operating temperature of each electronic device in the server is in a preset temperature range;

Step 5, reducing the rotation speed S1 of the cooling fan by a preset step length, wherein the rotation speed of the cooling fan after reduction is set to S2, and S2=S1-the preset step length;

step 6, recording average power consumption data W2 of the system after the rotation speed of the cooling fan is reduced;

Step 7, judging whether the power consumption data W2 after the rotation speed of the cooling fan is reduced is smaller than the power consumption data W1 before the cooling fan is reduced;

if the power consumption data W2 after the rotation speed of the cooling fan is reduced is smaller than the power consumption data W1 before the rotation speed is reduced, executing the step 8;

If the power consumption data W2 after the rotation speed of the cooling fan is reduced is larger than the power consumption data W1 before the rotation speed is reduced, executing the step 9;

step 10, raising the rotation speed S1 of the cooling fan by a preset step, wherein the raised rotation speed of the cooling fan is set to S3, and S3=S1+the preset step;

step 11, recording the average power consumption W3 of the system after the rotation speed of the cooling fan is increased;

step 12, judging whether the power consumption data W3 after the rotation speed of the cooling fan is increased is smaller than the power consumption data W1 before the rotation speed is increased;

if the power consumption data W3 after the rotation speed of the cooling fan is increased is smaller than the power consumption data W1 before the rotation speed is increased, executing the step 13;

if the power consumption data W3 after the rotation speed of the cooling fan is increased is greater than the power consumption data W1 before the rotation speed is increased, executing the step 14;

Compared with the prior art, the application has the following advantages:

the method for implementing and adjusting the power consumption of the server provided by the application comprises the following steps of adjusting a fan for cooling the server in the running process of the server: based on the current fan speed, adjusting the fan speed in a current adjusting direction with a preset step length; wherein, the current adjusting direction is to increase the rotation speed of the fan or decrease the rotation speed of the fan; comparing the power consumption data of the server before and after the fan rotation speed adjustment; if the power consumption data after the fan rotating speed is adjusted is smaller than the power consumption data before the fan rotating speed is adjusted, setting the adjusted fan rotating speed as the current fan rotating speed, and returning to the step of adjusting the fan rotating speed in the current adjusting direction by a preset step length; if the power consumption data after the fan rotating speed is adjusted is larger than the power consumption data before the fan rotating speed is adjusted, the adjusted fan rotating speed is set to be the current rotating speed, the current adjusting direction is updated to be the direction opposite to the original current adjusting direction, and then the step of adjusting the fan rotating speed in the current adjusting direction by the preset step length is returned. According to the method, through the ideas of rotation speed control and power consumption optimization, the power consumption data before and after the rotation speed adjustment of the cooling fan of the server are combined by utilizing the fan rotation speed adjustment strategy, so that the real-time optimization adjustment of the power consumption of the server is realized, and the power consumption of the server can be kept at a better level all the time.

Drawings

FIG. 1 is a schematic diagram of power consumption variation of a server according to the present application;

FIG. 2 is a flowchart of a method for adjusting power consumption of a server in real time according to a first embodiment of the present application;

FIG. 3 is a schematic diagram illustrating voltage equivalence in PWM pulse width modulation according to a first embodiment of the present application;

Fig. 4 is a schematic diagram of a BMC subsystem interaction structure according to a first embodiment of the present application;

fig. 5a is a schematic diagram of a first distribution of power consumption of a server when power consumption data after fan rotation speed adjustment is smaller than the adjusted fan rotation speed according to a first embodiment of the present application;

FIG. 5b is a second schematic diagram illustrating distribution of power consumption of a server according to the first embodiment of the present application;

FIG. 5c is a third schematic diagram illustrating a distribution of power consumption of a server according to the first embodiment of the present application;

FIG. 6a is a flowchart illustrating a method for adjusting power consumption of a server according to a second embodiment of the present application;

FIG. 6b is a flowchart illustrating a method for adjusting power consumption of a server according to a second embodiment of the present application;

Fig. 7 is a schematic structural diagram of a real-time adjustment device for power consumption of a server according to a third embodiment of the present application;

fig. 8 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly generalized by those skilled in the art without departing from the spirit of the application and, therefore, the application is not limited to the specific embodiments disclosed below.

The application provides a method, a device and electronic equipment for adjusting power consumption of a server in real time. The following examples are described in detail one by one.

In order to facilitate understanding of the method for adjusting the power consumption of the server provided by the application, the power consumption change rule of the server is introduced.

During the operation of the server, various cooling fans are required to radiate heat from the server to ensure the normal operation of the server. For example: the server is integrally provided with a main cooling fan, and a special cooling fan is arranged on some processing chips with larger power consumption. The heat dissipation effect provided by these cooling fans needs to ensure that the server is in a normal operating state during operation, and above all, that each electronic device in the server is always operated within an allowable temperature range.

Since the cooling fan itself is an energy-consuming element, the normal operation of the cooling fan can have an effect on the overall power consumption of the server. Therefore, the overall power consumption of the server should be the sum of the power consumption of the cooling fan and the power consumption of other various electronic devices in the server. The lower the rotational speed of the cooling fan during the operation of the server, the lower the corresponding rotational speed of the cooling fan. But conversely, the lower the rotational speed of the cooling fan, the more power consumption of the other various electronic devices in the server will gradually increase. That is, on the premise of meeting the working condition of the server, the rotating speed of the cooling fan is increased, so that the heat dissipation effect of various electronic devices in the server is enhanced, the running temperature of the electronic devices is reduced, and the power consumption of the electronic devices is effectively reduced; but the increase in the rotation speed of the cooling fan increases its own power consumption. In addition to the above-described influence of the fan rotation speed on the power consumption of the server, the power consumption of the server is related to a load on which the server normally operates, an environmental temperature in which the server is located, and the like. The power consumption of the server in the normal operation state is not simply linear with the rotation speed of the cooling fan.

Therefore, on the premise of ensuring the normal operation of the server, selecting a proper rotation speed of the cooling fan to ensure that the overall power consumption of the server is low is an important technical problem in the art.

Please refer to fig. 1, which is a schematic diagram of power consumption variation of a server according to the present application. In the schematic diagram of server power consumption variation shown in fig. 1, the horizontal axis represents the rotation speed of a server cooling fan, and the vertical axis represents the power consumption of the server. As can be seen from the power consumption change curve shown in fig. 1, the power consumption curve of the server is V-shaped as a whole along with the adjustment of the rotation speed of the fan, that is, by adjusting the rotation speed of the fan of the server, a better power consumption of the server meeting the normal operation of the server can be obtained. It will be understood that the power consumption curve shown in the power consumption change schematic diagram of the server shown in fig. 1 of the present application is a power consumption change curve obtained by adjusting the rotation speed of the cooling fan under the condition that a plurality of factors such as the operating environment temperature, the operating load and the like of the server are unchanged, and the purpose of the present application is to illustrate the effect of the present application. During the actual control process, the ambient temperature and the operating load are constantly changing, so that it is impossible to obtain a rational state like that of fig. 1; however, with respect to the technical solution of the present application, it is because of the continuous change of these influencing factors, so that the dynamic adjustment scheme provided by the technical solution of the present application has the advantage of continuously adapting to the changing situation.

In the art, a server is understood as one of computers, and provides computing or application services for other clients (e.g., PCs) in a network, and the server itself has high-speed CPU operation capability, long-time operation capability, strong I/O external data throughput capability, and good expandability. Generally, the server has the function of bearing corresponding service requests and guaranteeing service quality after being started.

In the starting or running process of the server, the rotation speed of the cooling fan may stay at any position of the horizontal axis of fig. 1, and the position is unknown.

Referring to fig. 2, a flowchart of a method for adjusting power consumption of a server in real time according to a first embodiment of the present application is shown, and the method includes the following steps of adjusting a fan for cooling the server during operation of the server:

step S201, adjusting the fan rotation speed in the current adjustment direction with a predetermined step based on the current fan rotation speed.

In the first embodiment of the present application, the current adjustment direction means to increase the rotation speed of the fan or decrease the rotation speed of the fan to adjust the rotation speed of the fan, that is, gradually increase or decrease the rotation speed of the fan according to a predetermined step.

The method aims to ensure that the server is always in a normal running state on the premise of reducing the running power consumption of the server. The reduction of power consumption of the server is mainly achieved by adjusting the rotation speed of the cooling fan, that is, by adjusting the operation temperatures of various electronic devices of the server. It can be understood that in the process of adjusting the rotation speed of the cooling fan, it is also required to ensure that all operation conditions of the server meet preset operation standards. The operation criteria mainly refer to that the operation temperatures of the respective electronic devices of the server are within a predetermined temperature range.

The preset temperature range is an early warning temperature value. In the actual running process of the server, the situation that the running temperature is higher than the preset temperature may occur due to the higher running load of the server or the higher environment temperature, but the running temperature of the server exceeds the preset temperature range in a short time and does not influence the normal running of the server, but at this time, the running state of the server may be at a critical point about to crash. For this case, it is also necessary to adjust the operating temperature of each electronic device in the server by adjusting the rotation speed of the cooling fan so as to satisfy the preset temperature. In a specific application process, in the process of adjusting the running temperature of the server to be within a preset temperature range, the adjustment of the rotation speed of the cooling fan is realized by adopting a PID control algorithm or other common control algorithms in the field. Specifically, in the process of adjusting the operation temperature of the server to be within the preset temperature range, the adjustment of the rotation speed of the cooling fan includes the following steps S201-1 to S201-4:

In step S201-1, the temperatures of the respective devices of the server are obtained.

The temperature of each device of the server refers to the running temperature of each electronic device in the server, and the running temperature can be obtained through a temperature sensor built in the device.

Step S201-2, judging whether the temperatures of all devices of the server are in a preset temperature range.

Step S201-3, if the judgment result is negative, adjusting the rotation speed of the fan for cooling the server through a preset temperature adjustment scheme until the temperature of each device meets a preset temperature range.

Step S201-4, if the judgment result is yes, the step S is carried out to adjust the fan rotating speed in the current adjusting direction by the preset step length.

The preset temperature adjustment scheme is to adjust the rotation speed of the fan based on a built-in PID control algorithm or other common control algorithms of the server so that the temperature of each device of the server is within a preset range. Since the PID control algorithm or other common control algorithm built in the server is known in the art, this part is not included in the scope of the claimed application. Therefore, the embodiment of the application does not describe the process of adjusting the fan rotation speed based on the built-in PID algorithm and other common control algorithms of the server so as to keep the operation temperature of each device of the server in a preset temperature range.

Under the condition that the running temperature of each electronic device in the server is ensured to be within the preset temperature range, namely, the real-time adjustment method for the power consumption of the server provided by the embodiment of the application is implemented, so that the whole energy consumption of the server is ensured to be always in a lower state.

In addition, in an alternative embodiment of the present application, the current fan speed in step S201 may be the initial speed at the start-up of the server, that is, in the case where the start-up of the server is started, the speed of the cooling fan is initialized, and then the step S201 of the present application is performed.

Specifically, when the server is started, the initialization of the cooling fan rotation speed includes the following steps S201-a and S201-b.

Step S201-a, when the server is started, obtaining a first rotating speed of the fan capable of meeting the starting requirement of the server according to the running environment temperature of the server.

The first rotating speed is the cooling fan rotating speed for initializing the fan rotating speed.

Step S201-b, initializing the first rotating speed to be the current fan rotating speed.

In step S201-b, the current fan speed obtained by initialization is referred to as a critical fan speed at which the server is normally started.

Specifically, the obtaining, according to the operating environment temperature of the server, the first rotational speed of the fan capable of meeting the starting requirement of the server includes:

Obtaining a second rotating speed capable of enabling the fan to be started normally; obtaining a third rotating speed of the fan capable of meeting the running requirement of the server according to the running environment temperature of the server; and selecting the larger one of the second rotating speed and the third rotating speed as the first rotating speed of the fan capable of meeting the starting requirement of the server.

The second rotation speed capable of enabling the fan to be started normally refers to a critical rotation speed for the fan to be started, and the corresponding third rotation speed of the fan meeting the running requirement of the server refers to a critical rotation speed for the server to be started normally. That is, among the critical rotation speed capable of fan start and the critical rotation speed capable of satisfying the normal start of the server, the larger one thereof is selected as the first rotation speed.

In step S201, the predetermined step may be understood as an amount of change in the rotational speed of the fan every time the rotational speed of the fan is adjusted, and in an alternative embodiment of the present application, the predetermined step is 1%, that is, the rotational speed of the fan is adjusted every time 1%. For example, if the current fan speed is 500r/min, the fan speed is 505r/min or 495r/min after step S201 is performed. Of course, the step size may also be set to a fixed rotational speed value, for example 5r/min.

Wherein, in the process of adjusting the rotating speed of the fan in real time, the preset step length can also be adjusted according to a preset step length adjusting strategy; the preset step adjustment strategy may have various alternatives, and the specific manner will be described later.

It can be understood that the fan rotation speed adjusting method is performed in real time, and in the running process of the server, factors such as running load and running environment temperature of the server, which influence power consumption of the server, are all uncontrollable factors which change continuously. After the fan rotation speed is adjusted, the server is in an operation state, and in order to ensure the normal operation state of the server, the fan rotation speed may also be changed due to temperature change in the next adjustment period. Thus, in an alternative embodiment of the present application, it is also desirable to collect and adjust the fan speed at preset time intervals. The collection of the fan rotating speed can be realized based on a fan rotating speed collection unit arranged in the server.

In the embodiment of the application, the current rotating speed of the cooling fan of the server can be realized through a fan rotating speed acquisition unit arranged in the server. For the adjustment of the rotation speed of the fan, the voltage of the two ends of the fan motor coil can be controlled through PWM (Pulse Width Modulation ), and the adjustment is realized through changing the voltage. The principle of PWM pulse width modulation is as follows:

Fig. 3 is a schematic diagram showing voltage equivalence in the PWM pulse width modulation process according to the first embodiment of the present application. That is, in the process of powering on the fan motor, the PWM generated by the singlechip continuously controls the on/off state of the Field Effect Transistor (FET) of the fan, so that the coil of the fan motor is repeatedly in the on/off state, the longer the time of each power on, the larger the equivalent voltage across the coil of the fan motor, the larger the intensity of the generated magnetic field, the faster the rotor of the motor rotates (i.e., the faster the rotation speed of the fan), and conversely, the slower the rotation speed of the fan.

Step S202, comparing the power consumption data of the server before and after the fan rotation speed adjustment.

In order to ensure the normal operation of the server, the server comprises a memory, a CPU processor, an internal bus, a power supply and other devices. In the first embodiment of the present application, the power consumption data of the server refers to the total power consumption of each device in the server, including the power consumption of the cooling fan itself and the power consumption of each electronic device in the server.

In the first embodiment of the present application, the collection of the power consumption data of the server and the speed regulation of the cooling fan are performed almost simultaneously. For example, if the adjustment process of the cooling fan is performed according to a preset adjustment period, the collection of the power consumption data of the server may also be performed according to the same collection period as the adjustment period. The collection of the server power consumption data may also be performed after the cooling fan is speed-adjusted, for example, the fan rotation speed collection unit for collecting the rotation speed of the cooling fan sends a collection instruction to the device for collecting the server power consumption after determining that the rotation speed of the cooling fan changes, so that the server collection device collects the server power consumption data.

Specifically, the power consumption data of the server is obtained through a BMC (Baseboard Manager Controller, baseboard management controller) in the server system, where the BMC is an independent subsystem in the server, and the BMC can interact with a signal transmission system and an operating system in the server to manage the temperature, power supply, and the like of the whole server. Fig. 4 is a schematic diagram of a BMC subsystem interaction structure according to a first embodiment of the present application.

Fig. 4 includes: a BMC chip 401, an I/O chip 402, a network interface controller 403, a serial interface connector 404, a switch logic controller 405, an intelligent platform controller 406 deployed in a server.

The BMC chip 401 manages each element by obtaining the data generated by each element. In the first embodiment of the present application, the BMC chip 401 mainly obtains the power consumption data of the above elements, so as to determine the total power consumption data of the server.

It will be appreciated that the connection relationship between the BMC chip 401 and each element and the data transmission relationship according to fig. 4 are only for facilitating understanding of the present application. In other embodiments, the BMC chip 401 may also obtain power consumption data of other elements in the server system, which is not limited in the present application.

In the course of achieving the adjustment of the power consumption of the server by adjusting the fan speed, the position in fig. 1 is unknown because of the fan speed. Therefore, whether the method of increasing the rotation speed of the fan by a predetermined step provided in step S201 of the first embodiment of the present application can reduce the power consumption of the server is unknown, whether the power consumption data of the server has reached the extreme point shown in fig. 1 is also unknown, and whether the power consumption data of the server can be continuously reduced in such a manner that the rotation speed of the cooling fan is continuously adjusted in the current adjustment direction is also positional. Therefore, after each adjustment of the fan rotation speed, the power consumption data before and after the fan rotation speed adjustment are compared.

Step S203, if the power consumption data after the fan rotation speed adjustment is smaller than the power consumption data before the adjustment, the fan rotation speed after the adjustment is set as the current fan rotation speed, and the step of adjusting the fan rotation speed in the current adjustment direction with a predetermined step length is returned.

If the power consumption data after the fan rotation speed is adjusted is smaller than the power consumption data before the fan rotation speed is adjusted, the current adjustment direction is correct. Fig. 5a is a schematic diagram of a first distribution of power consumption of a server when power consumption data after fan rotation speed adjustment is smaller than the adjusted fan rotation speed according to a first embodiment of the present application. That is, assuming that the power consumption data after the fan rotation speed adjustment is W2, the power consumption data before the fan rotation speed adjustment is W1, and W2 < W1, this means that if the fan rotation speed continues to be increased at predetermined time intervals, the power consumption of the server will continue to decrease for a period of time until it falls to a desired extreme point. Therefore, in this case, the step of returning to adjust the fan rotation speed in the current adjustment direction by a predetermined step is continued. Until the condition that the power consumption before the fan rotating speed is adjusted is smaller than the adjusted power consumption data occurs. Step S204 is then performed. In an alternative embodiment of the present application, if it is reasonable to adjust the fan speed according to the current adjustment direction all the time, and after adjusting the fan speed a plurality of times, there is a case where the power consumption before the fan speed adjustment is greater than the power consumption data after the adjustment. The preset step length can be further adjusted to be one half of the original preset step length according to a preset step length adjustment strategy, and the rotating speed of the fan is further adjusted according to the reverse direction opposite to the current adjustment direction until the situation that the power consumption before the fan rotating speed is adjusted is smaller than the adjusted power consumption data occurs again. So that the power consumption of the server after adjustment is more close to the minimum value of the power consumption.

To facilitate understanding of the above process of adjusting the predetermined step to one half of the original predetermined step and further adjusting the rotational speed of the fan in a reverse direction to the current adjustment direction. Please refer to fig. 5b, which is a second distribution diagram of power consumption of a server according to the first embodiment of the present application.

If it is reasonable to adjust the fan rotation speed according to the current adjustment direction, if the situation that the power consumption W1 before the fan rotation speed adjustment is smaller than the adjusted power consumption data W2 occurs, it means that the minimum value of the power consumption of the server is most likely to exist between the power consumption W1 and the power consumption W2, and if the fan rotation speed is further adjusted by one third of the predetermined step length in the opposite direction on the basis of the fan rotation speed corresponding to the power consumption W2 of the server, the power consumption of the server is further close to the minimum value of the power consumption of the server, so that the server can operate under better energy consumption.

Step S204, if the power consumption data after the fan rotation speed adjustment is greater than the power consumption data before the adjustment, the fan rotation speed after the adjustment is set as the current rotation speed, the current adjustment direction is updated to be the direction opposite to the original current adjustment direction, and then the step of adjusting the fan rotation speed in the current adjustment direction with a preset step length is returned.

If the power consumption data after the fan rotation speed is adjusted is greater than the power consumption data before the fan rotation speed is adjusted, it means that the current adjustment direction is wrong, please refer to fig. 5c, which is a third distribution diagram of the power consumption of the server according to the first embodiment of the present application. That is, assuming that the power consumption data after the fan rotation speed adjustment is W2 and the power consumption data before the fan rotation speed adjustment is W1, and W1 < W2, if the fan rotation speed continues to be increased at predetermined time intervals, the power consumption of the server continues to rise.

At this time, the adjustment direction of the fan rotation speed needs to be adjusted and updated immediately, so that the updated adjustment direction of the current fan rotation speed is opposite to the original current adjustment direction. And then adjusting the rotating speed of the fan according to the current adjusting direction by a preset step length.

As described in the above embodiments, the predetermined step adjustment strategy may take a variety of forms; the above-mentioned method generally adopts an equal step length, and when the adjustment direction is converted, the step length is reduced by a certain proportion, so that a feasible adjustment strategy is realized; in addition, other adjustment strategies may be employed.

For example, a fixed step adjustment strategy may be used entirely, with a fixed speed, or a fixed proportion of the current speed, such as 10% or 5%. Under the strategy, the control strategy is simpler.

In another possible solution, in step S202, in the step of comparing the power consumption data of the server before and after the fan rotation speed adjustment, an appropriate step size may be set according to the comparison result; for example, a corresponding table of difference values of power consumption data before and after adjustment and step sizes is established, wherein the smaller the difference value of the power consumption data before and after adjustment is, the smaller the corresponding step size is, and the specific corresponding relation can be determined according to an experiment or a theoretical model; in step S203, step S204 is performed by setting a step size according to the correspondence relation, and then step S201 is performed.

In order to facilitate understanding of the method for adjusting power consumption of a server according to the present application, the method for adjusting power consumption of a server according to the present application is described below with reference to fig. 6a and 6 b. Fig. 6a and fig. 6b are respectively two different real-time adjustment methods for power consumption of a server according to a second embodiment of the present application.

Fig. 6a is a real-time adjustment method for power consumption of a first server according to a second embodiment of the present application. The method includes the following steps S601a to S614a.

In step S601a, the server system is started.

And starting the server system, namely starting the server system. It is understood that the above step S601a may also be understood as a case where the server system is operating normally.

In step S602a, it is determined in real time whether the operation temperature of each electronic device of the server is lower than a preset temperature.

In the process of executing the method for adjusting the power consumption of the server in real time, each electronic device of the server needs to be ensured to be in a normal operation state in real time, and in an alternative embodiment of the application, the normal operation state of each electronic device of the server is ensured to be realized through the operation temperature of each electronic device of the server.

If the result of the judgment of whether the operating temperature of each electronic device of the server is lower than the preset temperature is no, step S603a is further executed.

In step S603a, the rotation speed of the cooling fan is adjusted by a PID control algorithm or other control algorithm built in the server. Until the operating temperature of each electronic device in the server is within a preset temperature range.

If the result of the judgment of whether the operation temperature of each electronic device of the server is lower than the preset temperature is no, it is determined that the server is in a normal operation state, and step S604 is performed.

In step S604a, the current rotation speed S1 of the cooling fan and the current average power consumption W1 of the server system are acquired.

The current rotation speed S1 of the cooling fan refers to a rotation speed corresponding to the cooling fan during the execution of the method for implementing and adjusting the power consumption of the server. While acquiring the current rotation speed S1 of the cooling fan, it is also necessary to determine power consumption data W1 corresponding to the server, where the power consumption data includes: the power consumption of the cooling fan itself and the average power consumption W1 of other electronic devices in the server. After determining the current rotation speed S1 of the cooling fan and the current average power consumption W1 of the server, the process proceeds to step S605a.

In step S605a, the rotation speed S1 of the cooling fan is increased by a predetermined step, wherein the rotation speed of the cooling fan after the increase is set to S2, s2=s1+s1×1%.

The predetermined step length refers to the change amount of the fan rotation speed every time the fan rotation speed is adjusted, and in the second embodiment of the present application, the predetermined step length is 1%, and the rotation speed of the fan is adjusted every time 1%. At the same time of raising the fan rotation speed, the power consumption data corresponding to the server after the fan rotation speed is raised also needs to be recorded.

In step S606a, average power consumption data W2 of the system after the cooling fan rotation speed is raised is recorded.

The average power consumption W2 recorded in step S606a refers to the average power consumption corresponding to the system after the rotation speed of the cooling fan is increased. After the above-described step S602a and step S603a are performed, step S607a of power consumption determination is performed.

In step S607a, it is determined whether the power consumption data W2 after the increase of the rotation speed of the cooling fan is smaller than the power consumption data W1 before the increase.

If the power consumption data of the cooling fan W2 after the rotation speed is increased is smaller than the power consumption data W1 before the rotation speed is increased, it is indicated that the average power consumption of the system can be reduced by increasing the rotation speed of the fan based on the current rotation speed S1. In this case, step S608a is performed.

In step S608a, the current fan rotation speed s1=s2 is recorded, the current average power consumption w1=w2 of the system is calculated, and step S605a is executed.

And repeating the steps until the condition that the power consumption data W2 after the rotation speed of the cooling fan is increased is larger than the power consumption data W1 before the rotation speed is increased is caused, and completing the process of small rotation speed increase cycle.

In the process of adjusting the fan rotation speed to reduce the power consumption of the server through the above steps S605a to S608a, the power consumption of the server may suddenly change due to the load of the server and the temperature of the operating environment, for example: in the process of suddenly increasing the load of the server, the running power consumption of the server will necessarily correspond to the situation of rising. In the method for adjusting the power consumption of the server in real time, the power consumption data after the fan rotation speed is increased, which is caused by the change of the running environment of the server, is larger than the power consumption data before the fan rotation speed is increased; and the power consumption data after the fan rotation speed is increased, which is simply caused by the change of the fan rotation speed, is larger than the power consumption data before the fan rotation speed is increased. After the above, the process advances to step S609a.

In step S609a, the current fan rotation speed s1=s2 is recorded, and the current average power consumption of the system w1=w2.

The purpose of the above step S609a is to update the rotation speed and average power consumption of the cooling fan, so that the step of the rotation speed decreasing cycle is conveniently performed. After the above step S609a is performed, step S610a is performed.

In step S610a, the rotation speed S1 of the cooling fan is reduced by a predetermined step, wherein the reduced rotation speed of the cooling fan is set to S3, s3=s1-s1×1%.

In step S610a, the predetermined step is the same as the step in step S605a, and is 1% of the current fan speed S1. After the above step S610a is performed, the process advances to step S611a.

In step S611a, the average power consumption W3 of the system after the cooling fan rotation speed is reduced is recorded.

The average power consumption W3 recorded in step S611a refers to the average power consumption corresponding to the system after the rotation speed of the cooling fan is reduced. After the above-described step S610a and step S611a are performed, step S612a of power consumption determination is performed.

In step S612a, it is determined whether the power consumption data W3 after the cooling fan rotation speed is reduced is smaller than the power consumption data W1 before the reduction.

If the power consumption data W3 after the cooling fan rotation speed is reduced is smaller than the power consumption data W1 before the cooling fan rotation speed is reduced, it is indicated that the average power consumption of the server system can be reduced by adopting the manner of reducing the fan rotation speed on the basis of the current rotation speed S1. In this case, step S613a is performed.

In step S613a, the current fan rotation speed s1=s3 is adjusted, the current average power consumption of the system w1=w3 is calculated, and step S610a is performed.

And repeating the steps until the situation that the power consumption data W3 after the rotation speed of the cooling fan is reduced is larger than the power consumption data W1 before the rotation speed is reduced is caused, and completing the process of the rotation speed reduction small cycle.

In step S612a, if the power consumption data W3 after the cooling fan rotation speed is reduced is larger than the power consumption data W1 before the reduction, it is indicated that the rotation speed adjustment direction needs to be further changed. And further proceeds to step S614a.

In step S614a, the current fan rotation speed s1=s3 is adjusted, the current average power consumption of the system w1=w3 is calculated, and step S604a is performed.

The purpose of step S614a is to update the current rotation speed and average power consumption of the cooling fan, so as to enter the step of the rotation speed increasing small cycle again, so as to complete the rotation speed adjusting large cycle.

In fig. 6b, the process of speed adjustment is basically the same as steps S601a to S613a described above, that is, when it is determined that the operating temperature of the server satisfies the preset temperature after the start-up of the server system, the speed reduction cycle is performed first; entering a rotation speed lifting small cycle under the condition that the power consumption data after the rotation speed is reduced is larger than the power consumption data before the rotation speed is reduced; and returning to the small rotation speed cycle under the condition that the power consumption data after the rotation speed is increased is larger than the power consumption data before the rotation speed is increased, so as to finish the large rotation speed cycle.

The third embodiment of the application also provides a device for adjusting the power consumption of the server in real time. Since this embodiment of the apparatus is substantially similar to the first and second embodiments described above, the description is relatively simple, and the relevant points are just to refer to the methods for adjusting the power consumption of the server provided in the first and second embodiments described above. The device embodiments described below are merely illustrative.

Fig. 7 is a schematic structural diagram of a real-time adjustment device for power consumption of a server according to a third embodiment of the present application.

The device comprises:

A first rotation speed adjusting unit 701, configured to adjust the fan rotation speed in a current adjustment direction with a predetermined step size based on the current fan rotation speed; wherein, the current adjusting direction is to increase the rotation speed of the fan or decrease the rotation speed of the fan;

A power consumption data comparing unit 702, configured to compare power consumption data of the server before and after the fan rotation speed adjustment;

a second rotation speed adjusting unit 703, configured to set the adjusted rotation speed of the fan as the current rotation speed of the fan if the adjusted rotation speed of the fan is less than the pre-adjusted rotation speed of the fan, and return to the step of adjusting the rotation speed of the fan in the current adjustment direction by a predetermined step length;

And a third rotation speed adjusting unit 704, configured to set the adjusted rotation speed of the fan as the current rotation speed if the adjusted rotation speed data of the fan is greater than the pre-adjusted rotation speed data, update the current adjustment direction to be opposite to the current adjustment direction, and return to the step of adjusting the rotation speed of the fan in the current adjustment direction with a predetermined step size.

Optionally, the apparatus further includes:

the step is performed at preset time intervals.

Optionally, the apparatus further includes:

The fourth embodiment of the present application, which corresponds to the above-described method embodiment and apparatus embodiment, further provides an electronic device, and since the electronic device is substantially similar to the above-described method embodiment and apparatus embodiment, the description is relatively simple, and the relevant point is only required to refer to the part of the description of the above-described method embodiment and apparatus embodiment, and the description of the electronic device provided in the present application is merely illustrative.

The electronic device includes:

A processor 801;

And a memory 802 for storing a program for implementing a method for adjusting power consumption of a server, the apparatus performing the following steps after executing the program by a processor:

The fifth embodiment of the present application also provides a computer storage medium, which is applied to a server operation process, and which stores a computer program, and when the program is executed, the following steps are performed:

It should be noted that, for the detailed description of the computer storage medium according to the fifth embodiment of the present application, reference may be made to the above description of the method embodiment, which is not repeated here.

While the application has been described in terms of preferred embodiments, it is not intended to be limiting, but rather, it will be apparent to those skilled in the art that various changes and modifications can be made herein without departing from the spirit and scope of the application as defined by the appended claims.

In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.

1. Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include non-transitory computer-readable media (transitor media), such as modulated data signals and carrier waves.

2. Those skilled in the art will appreciate that embodiments of the application may be provided as a system or an electronic device. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Claims

1. The method for adjusting the power consumption of the server in real time is characterized in that the following steps of adjusting a fan for cooling the server are executed in the running process of the server:

If the power consumption data after the fan rotating speed is adjusted is larger than the power consumption data before the fan rotating speed is adjusted, setting the adjusted fan rotating speed as the current rotating speed, updating the current adjusting direction to be opposite to the original current adjusting direction, and returning to the step of adjusting the fan rotating speed in the current adjusting direction by a preset step length;

If the power consumption data after the fan rotation speed is adjusted is smaller than the power consumption data before the fan rotation speed is adjusted, the executing step further includes: and if the current adjustment direction is determined to be correct and the step of adjusting the fan rotation speed to the current adjustment direction by a preset step length is returned to adjust the fan rotation speed for a plurality of times under the condition that the current adjustment direction is correct, and the preset step length is adjusted when the power consumption data before the fan rotation speed adjustment is smaller than the power consumption data after the fan rotation speed adjustment, and the fan rotation speed is adjusted according to the direction opposite to the current adjustment direction according to the adjusted step length, so that the power consumption of the server gradually reaches the minimum value of the power consumption of the server.

2. The method for real-time adjustment of power consumption of a server according to claim 1, further comprising, before the step of adjusting the fan rotation speed in the current adjustment direction in a predetermined step size:

obtaining the temperature of each device of the server;

3. The method for real-time adjustment of power consumption of a server according to claim 1, wherein the temperatures of the respective devices of the server are obtained by temperature sensors built in the respective devices.

4. The method for real-time adjustment of power consumption of a server according to claim 1, wherein said adjusting the fan rotation speed in the current adjustment direction in a predetermined step size comprises:

the step is performed at preset time intervals.

5. The method for real-time adjustment of power consumption of a server according to claim 1, further comprising:

Initializing the first rotating speed to be the current fan rotating speed.

6. The method for real-time adjustment of power consumption of a server according to claim 5, wherein obtaining a first rotational speed of the fan capable of meeting the server start-up requirement according to the operating environment temperature of the server comprises:

7. The method for real-time adjustment of power consumption of a server according to claim 1, wherein the power consumption data of the server is a sum of operation power consumption of each device of the server.

8. The method for real-time adjustment of power consumption of a server according to claim 1, further comprising: and adjusting the preset step length according to a preset step length adjustment strategy.

9. The device for adjusting the power consumption of the server in real time is characterized by being applied to the operation process of the server and comprising the following steps:

A third rotation speed adjusting unit, configured to set the adjusted rotation speed of the fan as a current rotation speed if the adjusted rotation speed data of the fan is greater than the pre-adjusted rotation speed data, update the current adjustment direction to be a direction opposite to the original current adjustment direction, and return to the step of adjusting the rotation speed of the fan in a current adjustment direction with a predetermined step length;

The second rotation speed adjusting unit is further configured to determine that the current adjustment direction is correct, and if the power consumption data before the fan rotation speed adjustment is smaller than the power consumption data after the fan rotation speed adjustment in the process of returning to the step of adjusting the fan rotation speed in the current adjustment direction by a predetermined step length to adjust the fan rotation speed multiple times when the current adjustment direction is correct, adjust the predetermined step length, and adjust the fan rotation speed according to the direction opposite to the current adjustment direction and according to the adjusted step length, so that the power consumption of the server gradually reaches the minimum value of the power consumption of the server.

10. An electronic device, wherein the electronic device is applied to a server operation process, and the electronic device comprises:

A processor; and

Based on the current fan speed, adjusting the fan speed in a current adjusting direction with a preset step length; wherein, the current adjusting direction is to increase the rotation speed of the fan or decrease the rotation speed of the fan; comparing the power consumption data of the server before and after the fan rotation speed adjustment; if the power consumption data after the fan rotating speed is adjusted is smaller than the power consumption data before the fan rotating speed is adjusted, setting the adjusted fan rotating speed as the current fan rotating speed, and returning to the step of adjusting the fan rotating speed in the current adjusting direction by a preset step length; if the power consumption data after the fan rotating speed is adjusted is larger than the power consumption data before the fan rotating speed is adjusted, setting the adjusted fan rotating speed as the current rotating speed, updating the current adjusting direction to be opposite to the original current adjusting direction, and returning to the step of adjusting the fan rotating speed in the current adjusting direction by a preset step length;

11. A computer storage medium, wherein the computer storage medium is used in a server operation process, the computer storage medium stores a computer program, and when the program is executed, the following steps are executed:

12. A method for real-time adjustment of power consumption of a server, wherein the following steps of adjusting a cooling fan of the server are performed:

step 1, starting a server system;

Step 13, adjusting the current fan rotation speed s1=s3, the current average power consumption w1=w3 of the system, and returning to the step 10;

step 14, adjusting the current fan rotation speed s1=s3, the current average power consumption w1=w3 of the system, and returning to the step 4;

If the power consumption data W2 after the rotation speed of the cooling fan is increased is smaller than the power consumption data W1 before the rotation speed is increased, the executing step further includes: and (3) determining that the rotation speed of the lifting cooling fan is correct, and under the condition that the rotation speed of the lifting cooling fan is correct, if the situation that the power consumption data W1 before lifting is smaller than the power consumption data W2 after lifting occurs in the process of returning to the execution step 5 to adjust the rotation speed of the fan for a plurality of times, adjusting the preset step length, and reducing the rotation speed of the cooling fan according to the adjusted step length so that the power consumption of the server gradually reaches the minimum value of the power consumption of the server.

13. A method for real-time adjustment of power consumption of a server, wherein the following steps of adjusting a cooling fan of the server are performed:

step 1, starting a server system;

step 10, raising the rotation speed S1 of the cooling fan by a preset step, wherein the raised rotation speed of the cooling fan is set as S3, and S3=S1+the preset step;

Wherein if the power consumption data W2 after the cooling fan rotation speed is reduced is smaller than the power consumption data W1 before the cooling fan rotation speed is reduced, the executing step further includes: and (3) determining that the rotation speed of the cooling fan is correct, and under the condition that the rotation speed of the cooling fan is correct, if the condition that the power consumption data W1 before reduction is smaller than the power consumption data W2 after reduction occurs in the process of returning to the execution step 5 to adjust the rotation speed of the fan for a plurality of times, adjusting the preset step length, and lifting the rotation speed of the cooling fan according to the adjusted step length so as to gradually enable the power consumption of the server to reach the minimum value of the power consumption of the server.