CN101661327A - Method for adjusting basic frequency of central processing unit (CPU) and device thereof - Google Patents
Method for adjusting basic frequency of central processing unit (CPU) and device thereof Download PDFInfo
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- CN101661327A CN101661327A CN200910180416A CN200910180416A CN101661327A CN 101661327 A CN101661327 A CN 101661327A CN 200910180416 A CN200910180416 A CN 200910180416A CN 200910180416 A CN200910180416 A CN 200910180416A CN 101661327 A CN101661327 A CN 101661327A
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Abstract
The invention discloses a method for adjusting the basic frequency of a central processing unit (CPU) and a device thereof. The method comprises: acquiring the average utilization rate of the CPU within the set time; and adjusting the basic frequency of the CPU according to the average utilization rate as well as the preset first utilization rate threshold value and second utilization rate threshold value. The device comprises an average utilization rate acquisition unit used for acquiring the average utilization rate of the CPU within the set time, and a basic frequency adjusting unit used for adjusting the basic frequency of the CPU according to the average utilization rate as well as the preset first utilization rate threshold value and second utilization rate threshold value. The method and the device can effectively acquire the real-time average utilization rate of the CPU by continuously monitoring the CPU, and can adjust the basic frequency of the CPU according to the real-timeaverage utilization rate in a self-adapting way, thus ensuring the CPU to have high basic frequency when the average utilization rate is higher and meeting the using performance of the CPU and have low basic frequency when the average utilization rate is lower, so that the effect of saving energy can be achieved.
Description
Technical field
The present invention relates to field of computer technology, particularly relate to a kind of method and device that helps energy-conservation adjusting central processing unit dominant frequency.
Background technology
Be accompanied by the fast development of computer and network technologies, server has obtained utilization widely, Web (World Wide Web World Wide Web for example, abbreviate Web as) server, FTP (File TransferProtocol, file transfer protocol (FTP)) server, mail server, antivirus server etc.Server is being played the part of important role in the information society in the present age, for computing and the processing power that promotes server, CPU (Central Processing Unit, central processing unit) dominant frequency (clock frequency, unit is MHz or GHz) design more and more higher, for example the dominant frequency of Intel Xeon X5570 reaches 2.93GHz.Though each CPU manufacturer reduces power consumption as much as possible when promoting processor performance, the power consumption of CPU is still very big, and for example the power consumption of Intel Xeon X5570 reaches 95W.Therefore, significant to the research of server power-economizing method.
Mostly present existing server power-economizing method is the research at supplied by AC/DC electricity mode, system radiating design, energy saving of hard disks conceptual design, in the CPU power-economizing method, be mostly to adopt the straightforward procedure of selecting low power processor, though do the power consumption that has reduced CPU like this, but reduced the dominant frequency of CPU simultaneously, sacrificed computing and the processing power of server CPU.For example, publication number is that the Chinese patent of CN101251760 and CN101340298 discloses such server power-economizing method.In fact, a lot of applications at server, for example in the applications such as data server, ftp server, mail server, change business processing amount every day of server or can present weekly regularly, for example the user wants big to the visit capacity of mail server in the daytime, and night is little a lot.Correspondingly, the utilization factor of server CPU is littler more a lot of than in the daytime at night, and in this case, high CPU frequency is not fully utilized, and has brought high power consumption on the contrary, causes the waste of the energy.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of energy-saving effect that both had, satisfy the method and the device of the adjusting central processing unit dominant frequency of central processing unit usability again, in order to solving in the prior art or CPU is in the high primary frequency state and wastes energy always, or come problem of energy saving by sacrificing cpu performance.
For solving the problems of the technologies described above, on the one hand, the invention provides a kind of method of regulating the central processing unit dominant frequency, said method comprising the steps of:
Obtain the average utilization of central processing unit in the setting-up time section;
According to described average utilization, and the predefined first utilization factor threshold value and the second utilization factor threshold value, the dominant frequency of regulating described central processing unit.
Further, regulate the dominant frequency of described central processing unit, concrete steps are as follows: when described average utilization during less than the described first utilization factor threshold value, reduce the dominant frequency of described central processing unit.
Further, regulate the dominant frequency of described central processing unit, concrete steps are as follows: when described average utilization more than or equal to the described first utilization factor threshold value, and during smaller or equal to the described second utilization factor threshold value, keep the dominant frequency of described central processing unit constant.
Further, regulate the dominant frequency of described central processing unit, concrete steps are as follows: when described average utilization during greater than the described second utilization factor threshold value, and the dominant frequency of the described central processing unit that raises.
Further, the dominant frequency of regulating described central processing unit is meant the outer frequency and/or the frequency multiplication of regulating described central processing unit.
On the other hand, the present invention also provides a kind of device of regulating the central processing unit dominant frequency, and described device comprises: the average utilization acquiring unit is used to obtain the average utilization of central processing unit in the setting-up time section; The dominant frequency regulon is used for according to described average utilization, and the predefined first utilization factor threshold value and the second utilization factor threshold value, the dominant frequency of regulating described central processing unit.
Further, described device also comprises: the average utilization judging unit is used to judge that described average utilization respectively and the magnitude relationship between the described first utilization factor threshold value, the second utilization factor threshold value.
Further, described dominant frequency regulon also comprises: dominant frequency reduces subelement, is used for reducing the dominant frequency of described central processing unit when described average utilization judging unit is judged described average utilization less than the described first utilization factor threshold value.
Further, described dominant frequency regulon also comprises: dominant frequency keeps subelement, be used for judging that when described average utilization judging unit described average utilization is more than or equal to the described first utilization factor threshold value, and during smaller or equal to the described second utilization factor threshold value, keep the dominant frequency of described central processing unit constant.
Further, described dominant frequency regulon also comprises: dominant frequency rising subelement is used for when described average utilization judging unit is judged described average utilization greater than the described second utilization factor threshold value dominant frequency of the described central processing unit that raises.
Beneficial effect of the present invention is as follows: by continuous monitoring CPU, obtain the average utilization of CPU in real time,, come self-adaptation to regulate the dominant frequency of CPU according to real-time CPU average utilization, guarantee that CPU has high primary frequency when average utilization is higher, satisfy the usability of CPU; Simultaneously, guarantee that CPU has low dominant frequency when average utilization is lower, reach energy-conservation effect.
Description of drawings
Fig. 1 is 1 one kinds of process flow diagrams of regulating the method for central processing unit dominant frequency of the embodiment of the invention;
Fig. 2 is 2 one kinds of process flow diagrams of regulating the method for central processing unit dominant frequency of the embodiment of the invention;
Fig. 3 is 3 one kinds of structural representations of regulating the device of central processing unit dominant frequency of the embodiment of the invention;
Fig. 4 is 4 one kinds of structural representations of regulating the device of central processing unit dominant frequency of the embodiment of the invention;
Fig. 5 is the 5 one kinds of structural representations that can regulate the server architecture of central processing unit dominant frequency of the embodiment of the invention.
Embodiment
In order to solve in the prior art or CPU is in the high primary frequency state and wastes energy always, come problem of energy saving by sacrificing cpu performance, the invention provides a kind of method and device of regulating the central processing unit dominant frequency, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, does not limit the present invention.
Fig. 1 is 1 one kinds of process flow diagrams of regulating the method for central processing unit dominant frequency of the embodiment of the invention.As shown in Figure 1, the method for present embodiment adjusting central processing unit dominant frequency may further comprise the steps:
S101 at first obtains the average utilization of central processing unit in the setting-up time section.The central processing unit of present embodiment is meant the CPU on the data processing equipments such as being installed in computing machine, PC or server.The setting-up time section is the time interval of a dynamic change; At first, set in advance the time span and the refreshing frequency of setting-up time section; Along with the carrying out of CPU work, upgrade the setting-up time section according to refreshing frequency.For example: the time span that the setting-up time section is set is 30 seconds, and refreshing frequency is that per second refreshes once.1 second to the 30th second time interval of first setting-up time Duan Weidi then; After 1 second, upgrade the setting-up time section, with the 2nd second to the 31st second time interval as second setting-up time section, and the like.The average utilization of CPU can obtain by the following method: at first, be captured in the utilization factor of each moment CPU in this setting-up time section, and summation then, gained and value can obtain the average utilization of CPU divided by the sampling number of this setting-up time section.The utilization factor of CPU can be by accumulation definite inactive percentage of time of processor of cpu idle time on a sampling interval, to determine the utilization factor of CPU.
S102 according to the average utilization that step S101 is obtained, in conjunction with the predefined first utilization factor threshold value and the second utilization factor threshold value, regulates the dominant frequency of CPU.Concrete way of regulating is when average utilization is lower than the first utilization factor threshold value, to reduce the dominant frequency of CPU; When average utilization is higher than the second utilization factor threshold value, the dominant frequency of rising CPU; When average utilization falls between, keep the dominant frequency of CPU constant.
Fig. 2 is 2 one kinds of process flow diagrams of regulating the method for central processing unit dominant frequency of the embodiment of the invention.As shown in Figure 2, the method for present embodiment adjusting central processing unit dominant frequency may further comprise the steps:
S201 upgrades the setting-up time section.Present embodiment need set in advance the setting-up time section, promptly sets in advance the time span and the refreshing frequency of setting-up time section.Along with the operation of CPU, every through a set time, all can obtain a setting-up time section, promptly in each refreshing frequency, obtain corresponding setting-up time section.In other words, the setting-up time section of present embodiment is the time interval of a dynamic change.Therefore, at first need to determine the setting-up time section of current correspondence.
S202 obtains the average utilization of CPU in this setting-up time section.Obtaining by the following method of average utilization: at first, obtain CPU each utilization factor constantly in this setting-up time section, summation then, gained and value can obtain the average utilization of CPU in this setting-up time section again divided by the sampling number of this setting-up time section.By asking the average utilization value, can reflect the operating position of CPU in the setting-up time section more realistically.
S203 judges that whether the average utilization of CPU in this setting-up time section be less than the first utilization factor threshold value.If then change step S204; If not, then change step S205.Promptly setting completed in system boot operation back for the first utilization factor threshold value of present embodiment.
S204, the average utilization of CPU in this setting-up time section illustrate that less than the first utilization factor threshold value CPU is in idle relatively state at present, and the task of processing is less, so the relatively low CPU of dominant frequency can satisfy usability.Because the dominant frequency of CPU satisfies following formula: dominant frequency=outer frequency * frequency multiplication, therefore, by reducing outer frequency and/or the frequency multiplication of CPU, can reduce the dominant frequency of CPU.After the dominant frequency that reduces CPU, return step S201, upgrade the setting-up time section, obtain the average utilization of CPU in the next setting-up time section.
S205 when the average utilization of CPU in this setting-up time section during more than or equal to the first utilization factor threshold value, needs also to judge that whether the average utilization of CPU in this setting-up time section be greater than the second utilization factor threshold value.If then change step S206; If not, then change step S207.The second utilization factor threshold value of present embodiment also is that setting completed in system boot operation back.
S206, the average utilization of CPU in this setting-up time section illustrate that greater than the second utilization factor threshold value CPU is in busy relatively state at present, and the task of processing is more, so, need could satisfy usability than the CPU of high primary frequency.Therefore, by outer frequency and/or the frequency multiplication of rising CPU, the dominant frequency of the CPU that raises.After the dominant frequency of CPU raises, return step S201, upgrade the setting-up time section, obtain the average utilization of CPU in the next setting-up time section.
S207 when the average utilization of CPU in this setting-up time section is between first and second utilization factor threshold value, keeps current C PU dominant frequency constant.The purpose of this step is to cause the adjustment repeatedly of CPU frequency in a period of time.After the dominant frequency of CPU remains unchanged, return step S201, upgrade the setting-up time section, obtain the average utilization of CPU in the next setting-up time section.
Fig. 3 is 3 one kinds of structural representations of regulating the device of central processing unit dominant frequency of the embodiment of the invention, and as shown in Figure 3, this device comprises:
Average utilization acquiring unit 301 is used to obtain the average utilization of central processing unit in the setting-up time section;
Fig. 4 is 4 one kinds of structural representations of regulating the device of central processing unit dominant frequency of the embodiment of the invention, and as shown in Figure 4, this device comprises:
Average utilization acquiring unit 401 is used to obtain the average utilization of central processing unit in the setting-up time section;
Average utilization judging unit 403 is used for the average utilization that obtains according to average utilization acquiring unit 401, judges that described average utilization respectively and the magnitude relationship between the described first utilization factor threshold value, the second utilization factor threshold value.
Dominant frequency reduces subelement 4021, is used for reducing the dominant frequency of described central processing unit when the described average utilization of described average utilization judging unit 403 judgements during less than the described first utilization factor threshold value;
Dominant frequency keeps subelement 4022, is used for judging described average utilization more than or equal to the described first utilization factor threshold value when described average utilization judging unit 403, and during smaller or equal to the described second utilization factor threshold value, keeps the dominant frequency of described central processing unit constant;
Dominant frequency rising subelement 4023 is used for when described average utilization judging unit 403 is judged described average utilization greater than the described second utilization factor threshold value dominant frequency of the described central processing unit that raises.
Fig. 5 is the 5 one kinds of structural representations that can regulate the server architecture of central processing unit dominant frequency of the embodiment of the invention.As shown in Figure 5, the framework of system is divided into hardware platform, Basic Input or Output System (BIOS), three levels of software systems.Server master board, control panel, server backboard, power supply constitute hardware platform together; Basic Input or Output System (BIOS), promptly BIOS finishes the initialization of hardware device and the guiding of operating system etc.; Operating system and various application program and software constitute software systems.Application program in the software systems is finished the setting of CPU setting-up time section, the setting of first and second utilization factor threshold value, and the renewal of CPU average utilization; The CPU setting-up time section and first and second utilization factor threshold parameter that are provided with are kept in the storer of hardware platform, are used for comparing with real-time average utilization when software systems are moved, and then regulate the dominant frequency of CPU; BIOS is according to formula dominant frequency=outer frequency * frequency multiplication, finishes adjusting to CPU frequency by revising outer frequency and/or frequency multiplication.
Server is in when work, and the adjustment of central processing unit dominant frequency is realized by following steps:
After the server start operation, at first finish the initialization of server, comprise that mainly BIOS finishes the operation of the initialization of hardware platform, hardware parameter setting, power-on self-test, system bootstrap and operating system and various application programs.After initialization was finished, application program was provided with CPU sliding time window (being the setting-up time section) Δ t, set Δ t=60 second, and promptly the time span of setting-up time section is 60 seconds, supposes that refreshing frequency is to refresh once in 1 second.In addition, also need to be provided with the first utilization factor threshold value η
LWith the second utilization factor threshold value η
H, generally, η
LBe set to: 15%～20%, η
HBe set to: 50～60%.
Begin to collect and add up the information of cpu busy percentage, promptly collect the average utilization of cpu busy percentage in 60 seconds.And constantly refresh CPU average utilization η in the sliding time window Δ t.When η is lower than the first utilization factor threshold value η
LThe time, show that the current server load is less, at this moment call the value that BIOS reduces CPU frequency multiplication or outer frequency, and then reduce CPU frequency, reduce the CPU power consumption.
Constantly refresh the mean value η of cpu busy percentage in the sliding time window Δ t.When η is higher than the second utilization factor threshold value η
HThe time, show that the current server load is bigger, need higher CPU frequency.Call the value of BIOS rising CPU frequency multiplication or outer frequency, and then the rising CPU frequency, enough computing and the processing poweies of CPU guaranteed.
When in a period of time, fluctuating greatly, cause the adjustment repeatedly of CPU frequency for the value that prevents η, therefore, when η is in [η
L, η
H] when scope was interior, CPU frequency did not adjust, and remains unchanged.
The method of regulating the server CPU frequency adaptively of present embodiment, can utilize sliding time window real-time update CPU average utilization, when the CPU average utilization is lower than the first utilization factor threshold value, reduce the dominant frequency of CPU adaptively by BIOS, and then reduce the CPU power consumption, realize that server is energy-conservation, when the CPU average utilization is higher than the second utilization factor threshold value,, and then satisfy the performance requirement of server by the BIOS dominant frequency of CPU that raises adaptively.
Although be the example purpose, the preferred embodiments of the present invention are disclosed, it also is possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present invention should be not limited to the foregoing description.
Claims (10)
1, a kind of method of regulating the central processing unit dominant frequency is characterized in that, said method comprising the steps of:
Obtain the average utilization of central processing unit in the setting-up time section;
According to described average utilization, and the predefined first utilization factor threshold value and the second utilization factor threshold value, the dominant frequency of regulating described central processing unit.
2, the method for adjusting central processing unit dominant frequency as claimed in claim 1 is characterized in that, regulates the dominant frequency of described central processing unit, and concrete steps are as follows:
When described average utilization during, reduce the dominant frequency of described central processing unit less than the described first utilization factor threshold value.
3, the method for adjusting central processing unit dominant frequency as claimed in claim 1 is characterized in that, regulates the dominant frequency of described central processing unit, and concrete steps are as follows:
When described average utilization more than or equal to the described first utilization factor threshold value, and during smaller or equal to the described second utilization factor threshold value, keep the dominant frequency of described central processing unit constant.
4, the method for adjusting central processing unit dominant frequency as claimed in claim 1 is characterized in that, regulates the dominant frequency of described central processing unit, and concrete steps are as follows:
When described average utilization during greater than the described second utilization factor threshold value, the dominant frequency of the described central processing unit that raises.
As the method for each described adjusting central processing unit dominant frequency of claim 1～4, it is characterized in that 5, the dominant frequency of regulating described central processing unit is meant the outer frequency and/or the frequency multiplication of regulating described central processing unit.
6, a kind of device of regulating the central processing unit dominant frequency is characterized in that, described device comprises:
The average utilization acquiring unit is used to obtain the average utilization of central processing unit in the setting-up time section;
The dominant frequency regulon is used for according to described average utilization, and the predefined first utilization factor threshold value and the second utilization factor threshold value, the dominant frequency of regulating described central processing unit.
7, the device of adjusting central processing unit dominant frequency as claimed in claim 6 is characterized in that, described device also comprises:
The average utilization judging unit is used to judge that described average utilization respectively and the magnitude relationship between the described first utilization factor threshold value, the second utilization factor threshold value.
8, the device of adjusting central processing unit dominant frequency as claimed in claim 7 is characterized in that, described dominant frequency regulon further comprises:
Dominant frequency reduces subelement, is used for reducing the dominant frequency of described central processing unit when described average utilization judging unit is judged described average utilization less than the described first utilization factor threshold value.
9, the device of adjusting central processing unit dominant frequency as claimed in claim 7 is characterized in that, described dominant frequency regulon also comprises:
Dominant frequency keeps subelement, is used for judging described average utilization more than or equal to the described first utilization factor threshold value when described average utilization judging unit, and during smaller or equal to the described second utilization factor threshold value, keeps the dominant frequency of described central processing unit constant.
10, the device of adjusting central processing unit dominant frequency as claimed in claim 7 is characterized in that, described dominant frequency regulon also comprises:
Dominant frequency rising subelement is used for when described average utilization judging unit is judged described average utilization greater than the described second utilization factor threshold value dominant frequency of the described central processing unit that raises.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012058786A1 (en) * | 2010-11-03 | 2012-05-10 | Telefonaktiebolaget L M Ericsson (Publ) | Conserving the power of a node in a wireless communication system |
| CN102999391A (en) * | 2012-11-21 | 2013-03-27 | 华为技术有限公司 | Method and device for adjusting processor operation frequency |
| CN103034539A (en) * | 2011-09-30 | 2013-04-10 | 英业达股份有限公司 | Server system and power management method thereof |
| CN103941844A (en) * | 2014-04-29 | 2014-07-23 | 联想(北京)有限公司 | Frequency regulation method and electronic device |
| CN104809090A (en) * | 2015-04-21 | 2015-07-29 | 广东欧珀移动通信有限公司 | Method and device for accelerating data transmission speed of mobile equipment |
| CN106527654A (en) * | 2016-10-13 | 2017-03-22 | 乐视控股（北京）有限公司 | Control method and control system for running frequency of terminal device |
| CN108121638A (en) * | 2017-12-21 | 2018-06-05 | 曙光信息产业股份有限公司 | Server flattens platform power consumption optimization method and device |
| CN110941325A (en) * | 2019-10-17 | 2020-03-31 | 华为技术有限公司 | Frequency modulation method and device of processor and computing equipment |
| CN112416513A (en) * | 2020-11-18 | 2021-02-26 | 烽火通信科技股份有限公司 | Method and system for dynamically adjusting dominant frequency of virtual machine in cloud network |
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2009
- 2009-10-14 CN CN200910180416A patent/CN101661327A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058786A1 (en) * | 2010-11-03 | 2012-05-10 | Telefonaktiebolaget L M Ericsson (Publ) | Conserving the power of a node in a wireless communication system |
| US9014746B2 (en) | 2010-11-03 | 2015-04-21 | Telefonaktiebolaget L M Ericsson (Publ) | Conserving the power of a node in a wireless communication system |
| CN103034539A (en) * | 2011-09-30 | 2013-04-10 | 英业达股份有限公司 | Server system and power management method thereof |
| CN102999391A (en) * | 2012-11-21 | 2013-03-27 | 华为技术有限公司 | Method and device for adjusting processor operation frequency |
| CN103941844A (en) * | 2014-04-29 | 2014-07-23 | 联想(北京)有限公司 | Frequency regulation method and electronic device |
| CN104809090A (en) * | 2015-04-21 | 2015-07-29 | 广东欧珀移动通信有限公司 | Method and device for accelerating data transmission speed of mobile equipment |
| CN104809090B (en) * | 2015-04-21 | 2018-01-26 | 广东欧珀移动通信有限公司 | A kind of method and apparatus for lifting mobile device data transmission speed |
| CN106527654A (en) * | 2016-10-13 | 2017-03-22 | 乐视控股（北京）有限公司 | Control method and control system for running frequency of terminal device |
| CN108121638A (en) * | 2017-12-21 | 2018-06-05 | 曙光信息产业股份有限公司 | Server flattens platform power consumption optimization method and device |
| CN110941325A (en) * | 2019-10-17 | 2020-03-31 | 华为技术有限公司 | Frequency modulation method and device of processor and computing equipment |
| CN110941325B (en) * | 2019-10-17 | 2022-05-06 | 华为技术有限公司 | Frequency modulation method and device of processor and computing equipment |
| CN112416513A (en) * | 2020-11-18 | 2021-02-26 | 烽火通信科技股份有限公司 | Method and system for dynamically adjusting dominant frequency of virtual machine in cloud network |
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