CN111984109A - Central processing unit frequency modulation method, system and medium based on substrate management controller - Google Patents
Central processing unit frequency modulation method, system and medium based on substrate management controller Download PDFInfo
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- CN111984109A CN111984109A CN202010780008.XA CN202010780008A CN111984109A CN 111984109 A CN111984109 A CN 111984109A CN 202010780008 A CN202010780008 A CN 202010780008A CN 111984109 A CN111984109 A CN 111984109A
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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
- G06F1/26—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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- 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
- G06F1/3243—Power saving in microcontroller unit
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
- G06F9/505—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals considering the load
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2209/00—Indexing scheme relating to G06F9/00
- G06F2209/50—Indexing scheme relating to G06F9/50
- G06F2209/5012—Processor sets
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Abstract
The invention provides a method, a system and a medium for frequency modulation of a central processing unit based on a substrate management controller, wherein the method comprises the following steps: step 1: reading the temperature of the central processing unit in real time through a substrate management controller; step 2: reading the load of a central processing unit in real time through a substrate management controller; and step 3: adjusting the frequency of the central processing unit through the substrate management controller according to the read temperature and load; and 4, step 4: setting a corresponding general input-output port level value according to the adjusted frequency; and 5: converting the clock PLL configuration of the central processing unit through the complex programmable logic device according to the general input-output port level value; step 6: and (5) repeatedly executing the steps 1 to 5 until the frequency modulation is up to the preset condition. The invention reduces the CPU frequency when ensuring that the temperature of the CPU is over high to the upper limit, and effectively avoids the defects of system crash, restart and the like caused by over high temperature of the CPU.
Description
Technical Field
The invention relates to the technical field of CPU frequency modulation, in particular to a method, a system and a medium for modulating the frequency of a central processing unit based on a substrate management controller.
Background
Energy conservation is an important social awareness in the world today, and refers to a series of actions that reduce energy consumption and increase energy utilization as much as possible. At present, many foreign CPU manufacturers develop their own energy saving technologies, such as EIST technology of intel and PowerNow technology of AMD, and the domestic processor has a big gap from foreign in the next aspect.
The current domestic processor basically works at a fixed main frequency and cannot be dynamically adjusted according to the current load and heat dissipation conditions. According to the invention, the working temperature and the load of the processor are detected in real time through the BMC, the working frequency of the CPU is adjusted in real time according to the current load and the working temperature, and the use performance and the use energy consumption of the CPU are balanced on the premise that the CPU is not damaged due to system crash, restart and the like caused by overhigh temperature.
A CPU: central processing unit, central processor;
BMC: a Basebard Management Controller, a substrate Management Controller;
CPLD: complex Programmable Logic Device.
Patent document CN102566726A (application No. 201010591310.7) discloses a network device for automatically controlling power consumption, which includes a power supply unit, a CPU, and a power consumption control module electrically connected to the power supply unit and the CPU, wherein the power supply unit is used for supplying power to the network device, the power consumption control module comprises a Baseboard Management Controller (BMC) connected to the power supply unit, and a north bridge chip connected between the BMC and the CPU, wherein the north bridge chip comprises a management engine connected to the BMC and the CPU, the BMC presets an upper power consumption limit of the network device, the management engine measures the power consumption of the network device by detecting the power output by the power supply unit and transmits the power to the BMC, when the BMC detects that the power output by the power supply unit is not appropriate to the preset upper power consumption limit, the BMC controls the management engine to adjust the working frequency of the CPU, and correspondingly adjusting the power consumption of the network equipment until the power consumption output by the power supply unit is equivalent to the preset upper power limit.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method, a system and a medium for frequency modulation of a central processing unit based on a substrate management controller.
The method for frequency modulation of the central processing unit based on the substrate management controller provided by the invention comprises the following steps:
step 1: reading the temperature of the central processing unit in real time through a substrate management controller;
step 2: reading the load of a central processing unit in real time through a substrate management controller;
and step 3: adjusting the frequency of the central processing unit through the substrate management controller according to the read temperature and load;
and 4, step 4: setting a corresponding general input-output port level value according to the adjusted frequency;
and 5: converting the clock PLL configuration of the central processing unit through the complex programmable logic device according to the general input-output port level value;
step 6: and (5) repeatedly executing the steps 1 to 5 until the frequency modulation is up to the preset condition.
Preferably, the baseboard management controller reads the temperature of the central processing unit in real time through the I2C bus.
Preferably, the adjusting the frequency of the central processing unit in step 3 includes:
reading the temperature of the central processing unit, and judging whether the temperature of the central processing unit reaches an upper limit or not;
if the temperature of the central processing unit reaches the upper limit, reducing the frequency of the central processing unit; if the temperature of the CPU does not reach the upper limit, the frequency of the CPU is increased.
Preferably, the adjusting the frequency of the central processing unit in step 3 further includes:
reading the load of the central processing unit, and judging whether the load of the central processing unit is more than 60%;
if the load of the central processing unit is more than 60%, the frequency of the central processing unit is firstly increased; if the load of the central processing unit is lower than 60%, the frequency of the central processing unit is reduced.
The invention provides a central processing unit frequency modulation system based on a substrate management controller, which comprises:
module M1: reading the temperature of the central processing unit in real time through a substrate management controller;
module M2: reading the load of a central processing unit in real time through a substrate management controller;
module M3: adjusting the frequency of the central processing unit through the substrate management controller according to the read temperature and load;
module M4: setting a corresponding general input-output port level value according to the adjusted frequency;
module M5: converting the clock PLL configuration of the central processing unit through the complex programmable logic device according to the general input-output port level value;
module M6: and repeatedly calling the module M1-the module M5 until the frequency modulation is stopped when the preset condition is met.
Preferably, the baseboard management controller reads the temperature of the central processing unit in real time through the I2C bus.
Preferably, the adjustment of the central processor frequency in the module M3 includes:
reading the temperature of the central processing unit, and judging whether the temperature of the central processing unit reaches an upper limit or not;
if the temperature of the central processing unit reaches the upper limit, reducing the frequency of the central processing unit; if the temperature of the CPU does not reach the upper limit, the frequency of the CPU is increased.
Preferably, the adjusting the frequency of the central processing unit in the module M3 further includes:
reading the load of the central processing unit, and judging whether the load of the central processing unit is more than 60%;
if the load of the central processing unit is more than 60%, the frequency of the central processing unit is firstly increased; if the load of the central processing unit is lower than 60%, the frequency of the central processing unit is reduced.
According to the present invention, a computer-readable storage medium is provided, in which a computer program is stored, which, when being executed by a processor, carries out the steps of the method as described above.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention reduces the CPU frequency when ensuring that the temperature of the CPU is over high to the upper limit, and effectively avoids the defects of system crash, restart and the like caused by over high temperature of the CPU;
2. the invention reduces the CPU frequency when the CPU load is smaller, thereby reducing the energy consumption and effectively saving the energy;
3. the invention raises CPU frequency when CPU load is large, and ensures performance of CPU to be fully exerted.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a connection relationship diagram of CPU, BMC and CPLD;
FIG. 2 is a flow chart of the BMC's determination of CPU temperature and load.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example (b):
according to the central processing unit frequency modulation method based on the baseboard management controller provided by the invention, the step of dynamically adjusting the frequency of the SW1621 processor by the BMC is as follows:
step 1, reading the temperature of a processor in real time by BMC through I2 CBus;
step 2, reading the load of the processor in real time by the BMC;
step 3, the BMC determines how to adjust the CPU frequency according to the read temperature and load, and the judgment process is as shown in FIG. 2;
step 4, the BMC sets a corresponding GPIO according to the truth table;
and 5, converting the 3.3V level value GPIO into a 1.8V setting CFG _ CORE _ H [3:0 ];
and 6, finishing primary frequency modulation, and repeating the steps 1-5 to finish final frequency modulation.
The CORE clock is generated via configuration pins CFG _ CORE [3:0] _ H. The core clock configuration pin definition table is as follows:
| CFG_CORE_H[3:0] | core frequency (MHz) | CFG_CORE_H[3:0] | Core frequency (MHz) |
| 0000 | 200 | 1000 | 1750 |
| 0001 | 800 | 1001 | 1800 |
| 0010 | 1000 | 1010 | 1850 |
| 0011 | 1200 | 1011 | 1900 |
| 0100 | 1400 | 1100 | 1950 |
| 0101 | 1500 | 1101 | 2000 |
| 0110 | 1600 | 1110 | 2050 |
| 0111 | 1700 | 1111 | 2100 |
The connection relation diagram of the CPU, the BMC and the CPLD is shown in figure 1.
The invention provides a central processing unit frequency modulation system based on a substrate management controller, which comprises:
module M1: reading the temperature of the central processing unit in real time through a substrate management controller;
module M2: reading the load of a central processing unit in real time through a substrate management controller;
module M3: adjusting the frequency of the central processing unit through the substrate management controller according to the read temperature and load;
module M4: setting a corresponding general input-output port level value according to the adjusted frequency;
module M5: converting the clock PLL configuration of the central processing unit through the complex programmable logic device according to the general input-output port level value;
module M6: and repeatedly calling the module M1-the module M5 until the frequency modulation is stopped when the preset condition is met.
Preferably, the baseboard management controller reads the temperature of the central processing unit in real time through the I2C bus.
Preferably, the adjustment of the central processor frequency in the module M3 includes:
reading the temperature of the central processing unit, and judging whether the temperature of the central processing unit reaches an upper limit or not;
if the temperature of the central processing unit reaches the upper limit, reducing the frequency of the central processing unit; if the temperature of the CPU does not reach the upper limit, the frequency of the CPU is increased.
Preferably, the adjusting the frequency of the central processing unit in the module M3 further includes:
reading the load of the central processing unit, and judging whether the load of the central processing unit is more than 60%;
if the load of the central processing unit is more than 60%, the frequency of the central processing unit is firstly increased; if the load of the central processing unit is lower than 60%, the frequency of the central processing unit is reduced.
According to the present invention, a computer-readable storage medium is provided, in which a computer program is stored, which, when being executed by a processor, carries out the steps of the method as described above.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. A central processing unit frequency modulation method based on a substrate management controller is characterized by comprising the following steps:
step 1: reading the temperature of the central processing unit in real time through a substrate management controller;
step 2: reading the load of a central processing unit in real time through a substrate management controller;
and step 3: adjusting the frequency of the central processing unit through the substrate management controller according to the read temperature and load;
and 4, step 4: setting a corresponding general input-output port level value according to the adjusted frequency;
and 5: converting the clock PLL configuration of the central processing unit through the complex programmable logic device according to the general input-output port level value;
step 6: and (5) repeatedly executing the steps 1 to 5 until the frequency modulation is up to the preset condition.
2. The method of claim 1, wherein the baseboard management controller reads the temperature of the central processing unit in real time through an I2C bus.
3. The method of claim 1, wherein the adjusting the frequency of the central processing unit in step 3 comprises:
reading the temperature of the central processing unit, and judging whether the temperature of the central processing unit reaches an upper limit or not;
if the temperature of the central processing unit reaches the upper limit, reducing the frequency of the central processing unit; if the temperature of the CPU does not reach the upper limit, the frequency of the CPU is increased.
4. The baseboard management controller-based central processing unit frequency modulation method of claim 3, wherein the adjusting the central processing unit frequency in step 3 further comprises:
reading the load of the central processing unit, and judging whether the load of the central processing unit is more than 60%;
if the load of the central processing unit is more than 60%, the frequency of the central processing unit is firstly increased; if the load of the central processing unit is lower than 60%, the frequency of the central processing unit is reduced.
5. The utility model provides a central processing unit frequency modulation system based on base plate management controller which characterized in that includes:
module M1: reading the temperature of the central processing unit in real time through a substrate management controller;
module M2: reading the load of a central processing unit in real time through a substrate management controller;
module M3: adjusting the frequency of the central processing unit through the substrate management controller according to the read temperature and load;
module M4: setting a corresponding general input-output port level value according to the adjusted frequency;
module M5: converting the clock PLL configuration of the central processing unit through the complex programmable logic device according to the general input-output port level value;
module M6: and repeatedly calling the module M1-the module M5 until the frequency modulation is stopped when the preset condition is met.
6. The baseboard management controller-based central processing unit frequency modulation system of claim 5, wherein the baseboard management controller reads the temperature of the central processing unit in real time through an I2C bus.
7. The baseboard management controller-based central processor frequency modulation system of claim 5, wherein the adjustment of the central processor frequency in module M3 comprises:
reading the temperature of the central processing unit, and judging whether the temperature of the central processing unit reaches an upper limit or not;
if the temperature of the central processing unit reaches the upper limit, reducing the frequency of the central processing unit; if the temperature of the CPU does not reach the upper limit, the frequency of the CPU is increased.
8. The bmc-based cpu frequency tuning system of claim 7 wherein the module M3 further comprises:
reading the load of the central processing unit, and judging whether the load of the central processing unit is more than 60%;
if the load of the central processing unit is more than 60%, the frequency of the central processing unit is firstly increased; if the load of the central processing unit is lower than 60%, the frequency of the central processing unit is reduced.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
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Cited By (1)
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| CN114020137A (en) * | 2021-10-29 | 2022-02-08 | 西安超越申泰信息科技有限公司 | Method for adaptively adjusting power consumption of CPU frequency control system |
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Application publication date: 20201124 |