KR20140080252A - Method and device for adjusting CPU frequency of server using server information - Google Patents

Method and device for adjusting CPU frequency of server using server information Download PDF

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Publication number
KR20140080252A
KR20140080252A KR1020120149849A KR20120149849A KR20140080252A KR 20140080252 A KR20140080252 A KR 20140080252A KR 1020120149849 A KR1020120149849 A KR 1020120149849A KR 20120149849 A KR20120149849 A KR 20120149849A KR 20140080252 A KR20140080252 A KR 20140080252A
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South Korea
Prior art keywords
server
frequency
information
cpu frequency
cpu
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KR1020120149849A
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Korean (ko)
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이지혜
이재봉
황태선
이영우
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주식회사 케이티
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Publication of KR20140080252A publication Critical patent/KR20140080252A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08—Clock generators with changeable or programmable clock frequency
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer And Data Communications (AREA)

Abstract

Disclosed are a method and an apparatus for adjusting the CPU frequency of a server using server information. The apparatus for adjusting the CPU frequency of the server comprises a server information collecting part for collecting the server information corresponding to the server; a CPU frequency adjusting part for determining the CPU frequency of the server corresponding to the collected server information by using a predetermined frequency adjustment policy by service type, and processing the server to be operated according to the determined CPU frequency; and a quality management part for collecting data on the quality of service corresponding to the server operated according to the determined CPU frequency and determining whether the server satisfies a predetermined quality reference.

Description

[0001] The present invention relates to a method and an apparatus for adjusting a server CPU frequency using server information,

The present invention relates to a server CPU frequency adjustment method and apparatus using server information.

Since the entry into the knowledge and information society, the demand for information data and internet service explosively increases, and the importance of the data center providing the service is increasing day by day.

Because Internet and data services are essential for uninterrupted service, the servers installed in the data center are running 24 hours regardless of service usage time and access amount.

However, uninterrupted operation of the server installed in the data center causes a large amount of power consumption, and excessive power consumption is recognized as a major cause of global warming as a direct cause of carbon dioxide emission. In particular, considering the need for greenhouse gas reduction under the Kyoto Protocol and the introduction of a carbon trading system, monitoring of energy and carbon dioxide emissions in data centers is a necessary requirement.

Therefore, it is required to reduce the power consumption of the data center and the server through the frequency control of the server CPU (Central Processing Unit).

However, in general, techniques and methods for controlling the frequency of the server CPU are variously disclosed by standard techniques and the like. However, there is a problem that the influence and effect of the service derived from the frequency control of the server CPU can not be predicted. There is also a problem that it is difficult to control each server individually in a system that is not managed.

Therefore, there is a need for a practical method of reducing the power consumption of the data center and the server through the frequency control of the server CPU without deteriorating the service quality in an easy way considering various server information.

The present invention provides a server and a data center (for example, a server and a data center) without deterioration in service quality in consideration of various server information (for example, real-time load information of the server, server specification information, And to provide a server CPU frequency adjustment method and apparatus using server information capable of reducing power consumption of a server.

The present invention provides a server CPU frequency adjustment method and apparatus using server information that can prevent the deterioration of service quality by grasping the influence of the service quality according to the frequency adjustment of the server CPU in real time.

The present invention relates to a server CPU frequency adjustment method which can differently apply a CPU frequency adjustment policy of a server according to real-time load information of a server, specification information of a server, and service type information provided by a server, And an apparatus.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, there is provided a server CPU (Central Processing Unit) frequency adjusting apparatus, comprising: a server information collecting unit for collecting server information corresponding to a server; A CPU frequency adjusting unit for determining a server CPU frequency corresponding to the collected server information by using a frequency adjustment policy for each service type according to a preset service type and processing the server to operate at the determined server CPU frequency; And a quality management unit for collecting service quality data corresponding to the server driven by the determined server CPU frequency and determining whether the server satisfies a predetermined quality reference value.

If the server does not satisfy the quality reference value, the quality management unit may request the CPU frequency adjustment unit to adjust the server CPU frequency so that the quality reference value is satisfied.

The CPU frequency adjusting unit may determine the server CPU frequency at a frequency relatively higher than the determined server CPU frequency according to the server CPU frequency adjustment request of the quality management unit.

When the CPU included in the server has a plurality of cores, the CPU frequency adjuster can individually determine the server CPU frequency for each core.

The server information may include server load information, server specification information, and service type information provided by the server.

The CPU frequency adjustment unit determines a frequency range according to the service information and the service type information by referring to the frequency adjustment policy for each service type and then sets one frequency value corresponding to the load information within the frequency range to the server CPU frequency .

According to another aspect of the present invention, there is provided a server CPU (Central Processing Unit) frequency adjustment method performed by a frequency adjusting apparatus, comprising: collecting server information corresponding to a server; Determining a server CPU frequency corresponding to the collected server information using a frequency adjustment policy for each service type; Processing the server to be driven with the determined server CPU frequency; And collecting service quality data corresponding to the server driven by the determined server CPU frequency, and determining whether the server satisfies a predetermined quality reference value.

If the server does not satisfy the quality reference value, re-determining the server CPU frequency at a frequency relatively higher than the determined server CPU frequency; And processing so that the server is again driven to the determined server CPU frequency.

When the CPU included in the server has a plurality of cores, the server CPU frequency may be determined for each core individually.

The server information may include server load information, server specification information, and service type information provided by the server.

Determining the server CPU frequency comprises: determining a frequency range according to the specification information and the service type information by referring to the frequency adjustment policy for each service type; And determining, as the server CPU frequency, one frequency value that matches the load information within the determined frequency range.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, the service quality is deteriorated in an easy way in consideration of various server information (for example, real time load information of the server, specification information of the server, service type information provided by the server, The power consumption of the server and the data center can be reduced.

In addition, since the influence of the service quality due to the frequency adjustment of the server CPU can be grasped in real time, the deterioration of the service quality can be prevented.

In addition, the CPU frequency adjustment policy of the server can be applied differently according to the real time load information of the server, the specification information of the server, and the service type information provided by the server, and the effect of the policy application can be verified in real time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a data center configuration including a server CPU frequency adjustment apparatus according to an embodiment of the present invention; FIG.
2 is a diagram schematically showing a configuration of a server CPU frequency adjusting apparatus according to an embodiment of the present invention;
3 is a diagram illustrating a configuration of server information collected by a server information collecting unit according to an embodiment of the present invention;
Figure 4 illustrates a server CPU coordination policy for each server according to a service type according to an embodiment of the present invention;
5 is a flowchart illustrating a server CPU frequency adjustment method according to an embodiment of the present invention;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Also, the terms " part, "" unit," " module, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation and may be implemented by hardware or software or a combination of hardware and software .

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a diagram schematically showing a configuration of a data center including a server CPU frequency adjusting apparatus according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a configuration of a server CPU frequency adjusting apparatus according to an embodiment of the present invention. Fig. FIG. 3 is a diagram illustrating a configuration of server information collected by the server information collecting unit according to an embodiment of the present invention. FIG. 4 is a diagram illustrating a server CPU coordination policy for each server according to a service type according to an embodiment of the present invention. Fig.

Referring to FIG. 1, a data center may include a plurality of servers 110_1, 110_2,..., 110_n (hereinafter collectively referred to as 110) and a frequency adjusting apparatus 120. [

Each server 110 included in the data center is a device that provides a service according to a predetermined service type.

According to a predetermined service type, each server 110 may be a web server for transmitting data through a user request and a response, for example, refining data supplied from a user, An application server that performs functions, a database server that stores user data in a text form, a file server that stores contents such as a user image, a picture, a moving picture, and an electronic file.

The frequency adjuster 120 collects server information related to each server 110 and controls the frequency of the CPU 110 of each server 110 so that the power consumption of each server 110 is minimized within a range in which a predetermined level of service quality is satisfied. .

2, the frequency adjusting apparatus 120 may include a server information collecting unit 210, a CPU frequency adjusting unit 220, a quality managing unit 230, and a storage unit 240.

The server information collection unit 210 collects server information corresponding to each server 110. The server information may include, for example, at least one of load information of the server, specification information of the server, and service type information provided by the server.

The server information collecting unit 210 may collect the same type of information from each server 110 specified in the service type in real time or at specified intervals in collecting the load information of the server. The load information may include at least one of CPU utilization, memory utilization, disk utilization, and network (In / Out) usage, as illustrated in FIG.

As the load information of the server, for example, a value measured in units of a predetermined period (for example, one minute) is used, or an average value (for example, an average value of load information measured for 5 minutes) Can be used.

In addition, the server information collecting unit 210 may collect information of different types according to the service type designated to each server 110. This is because the information required to adjust the server CPU frequency may vary depending on the role of each server.

For example, for database servers, DISK I / O information can be a relatively important factor; for application servers, CPU utilization information can be a relatively important factor; for Web servers, memory, disk and network usage information It may be a relatively important factor, so information about important factors may be collected separately for each type of service.

Also, the server information collecting unit 210 may collect server specification information (for example, CPU specifications (for example, Intel Xeon CPU E31260L @ 2.40 GHz x 2), memory amount (for example, 12 GB) (For example, a Web server, a database server, an application server, and the like) provided by the server from the storage unit 240 can do.

Since the specification information and the service type information to be collected may be information that is not variable in real time, for example, it may be set to be collected at a time point when the situation is changed (for example, at the time of system specification change, It may be set to be collected every predetermined period.

The CPU frequency adjustment unit 220 adjusts the CPU frequency of each server 110 in consideration of the server information collected by the server information collection unit 210. Here, the frequency range, the frequency value, and the like that can be assigned to the CPU of each server 110 can be designated in advance by the frequency adjustment policy (see FIG. 4) CPU frequency values suitable for each server 110 are determined and applied so that power consumption is minimized while satisfying quality.

In determining the CPU frequency to be applied to the server 110, for example, the CPU frequency adjusting unit 220 may adjust the range of the CPU frequency to be determined using the specification information and the service type information of the server 110, And determine an appropriate CPU frequency value within the range by using the load information of the server which changes in real time.

As another example, the CPU frequency adjustment unit 220 may comprehensively consider the load information of the server, the specification information of the server, and the service type information to determine the CPU frequency value to be applied to the server 110. Hereinafter, a method for determining the CPU frequency value of the server 110 will be briefly described with reference to FIG.

FIG. 4 illustrates a server CPU coordination policy according to a service type. Particularly, (a) illustrates a CPU frequency adjustment policy when a service type is a web server, and (b) and (c) illustrate a CPU frequency adjustment policy in the case of a database server.

If the server 110 designated as a service type includes a CPU operating up to 2.4 GHz, the CPU frequency value to be applied to the server 110 may be Min (for example, 1.8 GHz), Med (for example, 2.0 GHz ), MAX (for example, 2.4 GHz), and the CPU frequency adjustment unit 220 can determine an appropriate CPU frequency value in consideration of the CPU and the network load included in the collected server information. If the CPU included in the server 110 is a product having a plurality of cores (for example, 4 cores, 8 cores), it is natural that the CPU frequency adjuster 220 can individually set the CPU frequency for each core.

For example, when the CPU load is 30% and the network load is 30%, the CPU frequency adjuster 220 may adjust the CPU frequency of the server 110 to Med. The Min, Med, and Max designation methods of the CPU frequency values illustrated in FIG. 4 are examples of various CPU frequency value determination methods, and the determined CPU frequency values may be preset to various numerical values such as 1.8, 1.9, 2.0, 2.1, It is natural that it may be specified.

Similarly, the database server illustrated in FIGS. 4 (b) and 4 (c) will be described. If the collected server information indicates that the CPU 30%, Disk I / O 20% The CPU frequency adjusting unit 220 sets the CPU frequency value Med determined by the CPU 30% and the Disk I / O 20%, and the CPU frequency value Min determined by the Memory 20% and the Request / sec 20% The CPU frequency value of the server 110 can be changed.

Referring back to FIG. 2, the quality management unit 230 determines whether the server 110 whose CPU frequency is adjusted by the CPU frequency adjustment unit 220 satisfies a predetermined quality of service, and if the quality of service The CPU frequency adjustment unit 220 requests the CPU frequency rebalance. Herein, the information on the service quality of the server 110 may be received from the corresponding server 110 or a separate service quality measuring device (for example, traffic having a scheduling and / or control function to perform an operation similar to a user terminal A speed measurement server, etc.).

In response to a request from the quality control unit 230, the CPU frequency adjustment unit 220 adjusts the CPU frequency for the server 110 again, and the frequency will be determined to be relatively high.

The quality management unit 230 can determine whether the response speed of the server 110 satisfies predetermined criteria in order to determine whether the CPU frequency adjusted by the CPU frequency adjustment unit 220 is appropriate or not, The speed can be calculated, for example, by at least one of a measured value measured in units of a predetermined period (for example, 1 minute) and an average value of a predetermined number of times (for example, an average value of load information measured for 5 minutes) .

For example, if the quality reference value for the response time of the web server (for example, the time from when the data request of the user terminal is received to when the data is received) is designated as 10 ms or the response rate average value is 10 ms The CPU frequency adjustment unit 220 may request the frequency up adjustment when the frequency is 20 ms due to the CPU frequency adjustment.

Similarly, for a database server, the time required for data write, delete, modify, and search can be defined as a response rate, and in this case, The frequency adjustment will be made.

The storage unit 240 stores service type information assigned to each server 110, specification information of each server 110, server information collected by the server information collection unit 210, and information used by the CPU frequency adjustment unit 220 At least one of a frequency adjustment policy (see FIG. 4) for each service type, a quality reference value used by the quality management unit 230, quality measurement data provided from the service quality measurement apparatus, a CPU frequency value determined for each server 110, .

5 is a flowchart illustrating a server CPU frequency adjustment method according to an embodiment of the present invention.

Referring to FIG. 5, in step 510, the frequency adjuster 120 collects server information for one or more servers 110 existing in the data center. The server information to be collected may be, for example, at least one of load information, specification information, and service type information of each server 110 and the like.

In step 520, the frequency adjuster 120 determines an appropriate server CPU frequency for the server 110 by referring to the collected server information. The server CPU frequency can be determined using a predefined frequency adjustment policy as described above.

In step 530, the frequency adjuster 120 determines whether the application of the CPU frequency change of the server 110 is necessary because the frequency value already applied to each server 110 is different from the server CPU frequency value determined in step 520.

If it is determined in step 530 that the CPU frequency change of the server 110 is unnecessary, the process proceeds to step 510 again.

However, if it is necessary to apply the CPU frequency change of the server 110, the frequency adjuster 120 changes the CPU frequency for the server 110 in step 540. The server 110 that has undergone the CPU frequency change processing by step 540 will operate with the changed CPU frequency.

In step 550, the frequency adjustment device 120 collects quality of service data from one or more servers 110 and / or a quality of service measurement device. The quality of service data may be, for example, data relating to the response speed. For example, in the case of a web server, the quality of service data may be defined as a time from a data request time of a user terminal to receiving a data response. Deleted, modified, and retrieved.

In step 560, the frequency adjuster 120 determines whether the quality of service data for the server 110 whose CPU frequency is adjusted satisfies a predetermined quality reference value.

According to the determination in step 560, if the quality reference value is satisfied, the process proceeds to step 510 again.

However, if the specified quality reference value is not satisfied, the frequency adjusting apparatus 120 changes the CPU frequency of the server 110 to a lower-order CPU frequency, that is, a relatively higher CPU frequency in step 570, and proceeds to step 550 again . It has the advantage of satisfying the specified quality of service even if the power consumption is relatively higher than when operating at the CPU frequency determined by step 520 when operating at the CPU frequency changed by step 570. [

By the above-described steps 550 to 570, each server 110 can operate to satisfy a specified service quality while consuming a minimum amount of power.

It is a matter of course that the method of adjusting the server CPU frequency using the server information may be performed in an automated procedure in a time series sequence by a built-in or installed program in the digital processing apparatus. The codes and code segments that make up the program can be easily deduced by a computer programmer in the field. In addition, the program is stored in a computer readable medium readable by the digital processing apparatus, and is read and executed by the digital processing apparatus to implement the method. The information storage medium includes a magnetic recording medium, an optical recording medium, and a carrier wave medium.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

110: server 120: frequency adjuster
210: server information collecting unit 220: CPU frequency adjusting unit
230: quality management unit 240: storage unit

Claims (12)

A server CPU (Central Processing Unit) frequency adjusting device,
A server information collecting unit for collecting server information corresponding to the server;
A CPU frequency adjusting unit for determining a server CPU frequency corresponding to the collected server information by using a frequency adjustment policy for each service type according to a preset service type and processing the server to operate at the determined server CPU frequency; And
And a quality management unit for collecting service quality data corresponding to the server driven by the determined server CPU frequency and determining whether the server satisfies a predetermined quality reference value.
The method according to claim 1,
Wherein when the server does not satisfy the quality reference value, the quality management unit requests the CPU frequency adjustment unit to adjust the server CPU frequency so that the quality reference value is satisfied.
3. The method of claim 2,
Wherein the CPU frequency adjustment unit re-determines the server CPU frequency at a frequency relatively higher than the determined server CPU frequency in response to the server CPU frequency adjustment request of the quality management unit.
The method according to claim 1,
Wherein when the CPU included in the server has a plurality of cores, the CPU frequency adjusting unit determines the server CPU frequency individually for each core.
The method according to claim 1,
Wherein the server information includes load information of the server, specification information of the server, and service type information provided by the server.
6. The method of claim 5,
The CPU frequency adjustment unit determines a frequency range according to the service information and the service type information by referring to the frequency adjustment policy for each service type and then sets one frequency value corresponding to the load information within the frequency range to the server CPU frequency To the server CPU frequency adjustment unit.
In a server CPU (Central Processing Unit) frequency adjustment method performed by the frequency adjusting device,
Collecting server information corresponding to the server;
Determining a server CPU frequency corresponding to the collected server information using a frequency adjustment policy for each service type;
Processing the server to be driven with the determined server CPU frequency; And
Collecting service quality data corresponding to the server driven by the determined server CPU frequency and determining whether the server satisfies a predetermined quality reference value.
8. The method of claim 7,
If the server does not satisfy the quality reference value,
Re-determining the server CPU frequency at a frequency that is relatively higher than the server CPU frequency already determined; And
Further comprising the step of processing the server to be driven again with a determined server CPU frequency.
9. The method according to claim 7 or 8,
Wherein when the CPU included in the server has a plurality of cores, a server CPU frequency is determined for each core individually.
8. The method of claim 7,
Wherein the server information includes load information of the server, specification information of the server, and service type information provided by the server.
11. The method of claim 10,
The step of determining the server CPU frequency comprises:
Determining a frequency range according to the specification information and the service type information by referring to the frequency adjustment policy for each service type; And
And determining one frequency value corresponding to the load information as the server CPU frequency within the determined frequency range.
11. A recording medium on which a program of instructions executable by a digital processing apparatus to perform the server CPU frequency adjustment method according to any one of claims 7 to 8 and 10 to 11 is recorded.
KR1020120149849A 2012-12-20 2012-12-20 Method and device for adjusting CPU frequency of server using server information KR20140080252A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106155866A (en) * 2016-08-01 2016-11-23 浪潮电子信息产业股份有限公司 A kind of method and device of monitoring CPU core frequency
KR20180008236A (en) * 2016-07-14 2018-01-24 주식회사 팀스톤 Computer-executable method of monitoring server load, apparatus performing the same and medium storage storing the same
KR20210078260A (en) * 2019-12-18 2021-06-28 고려대학교 산학협력단 Apparatus for Predicting Optimal CPU Frequency Based on Machine learning
CN116048772A (en) * 2022-08-26 2023-05-02 荣耀终端有限公司 Method and device for adjusting frequency of central processing unit and terminal equipment
WO2024043464A1 (en) * 2022-08-24 2024-02-29 삼성전자주식회사 Electronic device and method for adjusting frequencies of respective circuits included in processor, and computer-readabale storage medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180008236A (en) * 2016-07-14 2018-01-24 주식회사 팀스톤 Computer-executable method of monitoring server load, apparatus performing the same and medium storage storing the same
CN106155866A (en) * 2016-08-01 2016-11-23 浪潮电子信息产业股份有限公司 A kind of method and device of monitoring CPU core frequency
KR20210078260A (en) * 2019-12-18 2021-06-28 고려대학교 산학협력단 Apparatus for Predicting Optimal CPU Frequency Based on Machine learning
WO2024043464A1 (en) * 2022-08-24 2024-02-29 삼성전자주식회사 Electronic device and method for adjusting frequencies of respective circuits included in processor, and computer-readabale storage medium
CN116048772A (en) * 2022-08-26 2023-05-02 荣耀终端有限公司 Method and device for adjusting frequency of central processing unit and terminal equipment
CN116048772B (en) * 2022-08-26 2023-10-31 荣耀终端有限公司 Method and device for adjusting frequency of central processing unit and terminal equipment

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