CN111966208A - Method and device for reducing power consumption of server - Google Patents
Method and device for reducing power consumption of server Download PDFInfo
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- CN111966208A CN111966208A CN202010741915.3A CN202010741915A CN111966208A CN 111966208 A CN111966208 A CN 111966208A CN 202010741915 A CN202010741915 A CN 202010741915A CN 111966208 A CN111966208 A CN 111966208A
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 230000007958 sleep Effects 0.000 claims description 20
- 230000005059 dormancy Effects 0.000 claims description 10
- 230000000284 resting effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000013468 resource allocation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000022249 Sleep-Wake Transition disease Diseases 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006266 hibernation Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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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
- 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
- G06F1/329—Power saving characterised by the action undertaken by task scheduling
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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
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4418—Suspend and resume; Hibernate and awake
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Abstract
The invention discloses a method and a device for reducing power consumption of a server, wherein the server comprises at least two CPUs (central processing units), and the utilization rate of the CPUs of the server is detected in real time; judging whether the server is in low power consumption according to the utilization rate of the CPU of the server, and switching processes and threads on part of CPUs to the rest of CPUs; and switching the CPU which has migrated the process and the thread to a dormant state. The invention collects the server running information in a centralized way, when the CPU utilization rate of the server is in a low load state, the program automatically switches the resource consumption process and thread to a part of CPU, and the remaining CPU is kept idle and is dormant, thereby reducing the whole power consumption. The invention can effectively reduce the overall power consumption of the server, has simple and efficient operation, saves the power consumption of the data center and reduces the operation cost.
Description
Technical Field
The invention relates to the field of server power consumption, in particular to a method and a device for reducing server power consumption.
Background
The CPU is a core component of a server product, and is also a power consumption consumer in the server, and power consumption per hundreds of watts makes power consumption and heat dissipation of the server become a big problem more and more. Currently, although Intel and AMD have low power consumption CPUs, the power of the Power Supply Unit (PSU) of such servers is greatly increased, which is contrary to the trend of low power consumption, so that the power consumption of the servers is still high.
Disclosure of Invention
In order to solve the above problem, the present invention provides a method and an apparatus for reducing server power consumption, which reduces server power consumption by idling a CPU.
The technical scheme of the invention is as follows: a method of reducing power consumption of a server, the server including at least two CPUs, comprising the steps of:
detecting the utilization rate of a server CPU in real time;
judging whether the server is in low power consumption according to the utilization rate of the CPU of the server, and switching processes and threads on part of CPUs to the rest of CPUs;
and switching the CPU which has migrated the process and the thread to a dormant state.
Further, when the server is judged to be in low power consumption according to the utilization rate of the server CPU, switching processes and threads on part of the CPUs to other CPUs, specifically:
determining the running number and the sleeping number of the CPUs according to the utilization rate of the CPUs of the server;
selecting a corresponding CPU as a CPU to be operated and selecting the corresponding CPU as the CPU to be dormant based on the determined running number and the sleeping number of the CPUs;
and switching the process and the thread on the CPU to be dormant to the CPU to be operated.
Further, determining the running number and the sleeping number of the CPUs according to the utilization rate of the CPUs of the server, specifically:
determining a CPU utilization rate node according to a formula (1/n) × 100% × i; wherein n is the number of CPUs, i =1, 2 … … n-1, and n-1 CPU utilization nodes are determined;
when the utilization rate of the CPU of the server is less than or equal to (1/n) 100%, determining that the running number of the CPU is 1 and the dormancy number is n-1;
when the utilization rate of the CPU of the server is less than or equal to (1/n) × 100% ((k-1)) < 100% > (k), determining the running number of the CPU to be k, and the resting number to be n-k; wherein k is more than or equal to 2 and less than or equal to n-1;
when the utilization rate of the CPU of the server is > (1/n) × 100% > (n-1), the running number of the CPUs is determined to be n, and the sleeping number is determined to be 0.
Further, after the running number and the sleeping number of the CPUs are determined, the corresponding CPUs are selected as the CPUs to be dormant from top to bottom according to the arrangement serial numbers of the CPUs.
Further, before detecting the utilization rate of the server CPU in real time, inserting the PCIe devices into the CPU according to the sequence of the sequence numbers of the CPU from low to high.
Further, the server BIOS is configured to allow the CPU to conserve power prior to detecting the utilization of the server CPU in real time.
Further, before the process and the thread on the CPU to be dormant are switched to the CPU to be operated, the process and the thread on the CPU to be dormant are detected, and the process and the thread occupying the CPU resources are switched to the CPU to be operated.
The technical scheme of the invention also comprises a device for reducing the power consumption of the server, wherein the server comprises at least two CPUs,
CPU usage detection module: detecting the utilization rate of a server CPU in real time;
the process thread switching module: judging whether the server is in low power consumption according to the utilization rate of the CPU of the server, and switching processes and threads on part of CPUs to the rest of CPUs;
a dormancy starting module: and switching the CPU which has migrated the process and the thread to a dormant state.
Further, the process thread switching module includes,
CPU operation dormancy number determination unit: determining the running number and the sleeping number of the CPUs according to the utilization rate of the CPUs of the server;
a CPU selection unit: selecting a corresponding CPU as a CPU to be dormant for the CPU to be operated based on the determined running number and the sleeping number of the CPU;
a process thread switching unit: and switching the process and the thread on the CPU to be dormant to the CPU to be operated.
Further, the CPU operation and sleep number determination unit determines the operation number and sleep number of the CPU according to the following procedure:
determining a CPU utilization rate node according to a formula (1/n) × 100% × i; wherein n is the number of CPUs, i =1, 2 … … n-1, and n-1 CPU utilization nodes are determined;
when the utilization rate of the CPU of the server is less than or equal to (1/n) 100%, determining that the running number of the CPU is 1 and the dormancy number is n-1;
when the utilization rate of the CPU of the server is less than or equal to (1/n) × 100% ((k-1)) < 100% > (k), determining the running number of the CPU to be k, and the resting number to be n-k; wherein k is more than or equal to 2 and less than or equal to n-1;
when the utilization rate of the CPU of the server is > (1/n) × 100% > (n-1), the running number of the CPUs is determined to be n, and the sleeping number is determined to be 0.
The invention provides a method and a device for reducing the power consumption of a server, which are used for carrying out centralized collection on the running information of the server, when the CPU utilization rate of the server is in a low load state, a program automatically switches a process and a thread which consume resources to a CPU, and keeps the rest CPU idle to enable the CPU to be dormant (the power consumption of the CPU in the dormant state is far lower than that of the CPU in the awakening state); thereby reducing overall power consumption. The invention can effectively reduce the overall power consumption of the server, has simple and efficient operation, saves the power consumption of the data center and reduces the operation cost.
Drawings
FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for implementing the embodiments of the present invention;
fig. 3 is a schematic block diagram of a second structure according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
Example one
According to statistics, the overall power consumption of the server is mainly consumed by a CPU, a mainboard, a hard disk and the like. At present, the utilization rate of CPU of all running servers is mostly between 20% and 40%, the utilization rate of CPU is not high, but the overall power consumption of the servers is high, because the CPU of the servers adopts a load balancing strategy no matter the utilization rate is high or low, the CPU is used completely, resources are wasted seriously, and the power consumption is increased. Based on this, the invention collects the server running information in a centralized way, when the CPU utilization rate of the server is in a low load, the program automatically switches the resource consuming process and thread to a part of CPU, and keeps the rest CPU idle to enable the CPU to be dormant (the power consumption of the CPU in the dormant state is far lower than that in the awakening state); thereby reducing the overall power consumption of the server.
As shown in fig. 1, this embodiment specifically includes the following steps:
s1, detecting the utilization rate of the CPU of the server in real time;
s2, judging whether the server is in low power consumption according to the utilization rate of the CPU of the server, and switching the processes and threads on part of the CPUs to the rest of the CPUs;
s3, the CPU that has migrated the process or thread is switched to the sleep state.
It should be noted that the present invention is applicable to a plurality of (at least two) servers to implement thread migration.
In order to further understand the scheme, a specific implementation method is provided below by combining the steps and based on the principle of the invention. As shown in fig. 2, the present embodiment includes the following steps.
S101, inserting PCIe equipment into a CPU according to the sequence of the serial number of the CPU from low to high;
note that, the CPU configuration numbers (0, 1, 2 … …) are sorted in advance so that the CPU is selected to be switched and put to sleep in the following. The realization method selects the CPU to sleep according to the serial number from high to low, namely, the CPU with the lowest sequence is always in the running state, therefore, PCIe devices (such as network cards and raid cards) are inserted into the CPU according to the sequence of the serial numbers of the CPU from low to high in advance, namely, the CPU with the lowest sequence is inserted first, the CPU with the next lowest sequence is inserted after the CPU is fully inserted, and so on, so as to ensure that part of the CPU is in sleep in time, and the server can normally communicate with other devices. Wherein, the staff can configure serial numbers for the CPU according to the performance of the CPU.
S102, configuring the BIOS of the server to allow the CPU to save energy;
and carrying out corresponding configuration so as to sleep the CPU subsequently.
S103, detecting the utilization rate of the CPU of the server in real time;
it should be noted that the real-time detection is the overall usage rate of the server CPU.
S104, determining the running number and the sleeping number of the CPUs according to the utilization rate of the CPUs of the server;
the present embodiment specifically sets the number of operations and the number of hibernation of the CPU according to the data of the CPU. Specifically, a CPU utilization rate node is determined according to a formula (1/n) × 100% × i; wherein n is the number of CPUs, i =1, 2 … … n-1, and n-1 CPU utilization nodes are determined.
When the utilization rate of the CPU of the server is less than or equal to (1/n) 100%, determining that the running number of the CPU is 1 and the dormancy number is n-1;
when the utilization rate of the CPU of the server is less than or equal to (1/n) × 100% ((k-1)) < 100% > (k), determining the running number of the CPU to be k, and the resting number to be n-k; wherein k is more than or equal to 2 and less than or equal to n-1;
when the utilization rate of the CPU of the server is > (1/n) × 100% > (n-1), the running number of the CPUs is determined to be n, and the sleeping number is determined to be 0.
S105, selecting the corresponding CPU as the CPU to be operated and selecting the corresponding CPU as the CPU to be dormant based on the determined running number and the sleeping number of the CPUs;
in this embodiment, according to the serial number of the CPUs, the corresponding CPU is selected as the CPU to be dormant in the order from top to bottom, and the corresponding other CPUs are the CPUs to be operated. For example, the CPU arrangement serial numbers are 0, 1, 2 and 3; and if determining that two CPUs need to be in sleep, selecting the CPUs with the sequence numbers of 2 and 3 for sleep.
S106, switching the process and the thread on the CPU to be dormant to the CPU to be operated;
it should be noted that there are many process threads on the CPU, but some do not occupy the CPU resource when not running, so in the specific implementation, before switching, the process and the thread that need to be switched are first found, that is, the process and the thread that occupy the CPU resource are first found, and the process and the thread that occupy the CPU resource are switched to the CPU to be run. The handover procedure can be implemented by related commands in the prior art, and will not be described in detail herein.
In addition, the embodiment can switch the processes and threads to be switched to the CPUs to be run in a load balancing manner.
The above steps S104 to S106 are to implement that when the server is in low power, a part of the CPU is put to sleep, and the operation of the server is not affected.
S107, switching the CPU which has migrated the process and the thread to a dormant state;
and part of the CPUs are switched to a dormant state, so that the aim of reducing the power consumption of the server is fulfilled.
Based on the method, when the server is configured with two physical CPUs, the following steps are specifically performed:
when the utilization rate of the cpu of the server is less than 50%, the program automatically switches all the processes and threads of system operation (namely, resource occupation) to the cpu0, so that the cpu1 is idle, and the cpu1 automatically sleeps to reduce power consumption.
When the CPU utilization rate of the server is more than 50%, the program does not process, the system distributes the processes and the threads to the CPUs 0 and 1 in a load balancing mode, and the CPUs 0 and 1 are all used.
When the two CPUs are configured, tests show that when the utilization rate of the system CPU is 40%, the system resource allocation is changed into unified processing of the CPU0, the CPU1 is dormant, and the overall power consumption of the CPU can be reduced by about 60W.
When the server configures four physical cpus, specifically:
when the CPU utilization rate of the server is less than or equal to 75% and more than 50%, the program automatically switches all the processes and threads operated by the system to the CPUs 0, 1 and 2, and the CPU3 automatically idles and automatically sleeps; the power consumption is reduced;
when the CPU utilization rate of the server is less than or equal to 50% and more than 25%, the program automatically switches all the processes and threads operated by the system to the CPUs 0 and 1, and the CPUs 2 and 3 are automatically idle and automatically sleep; the power consumption is reduced;
when the CPU utilization rate of the server is less than or equal to 25%, the program automatically switches all the processes and threads operated by the system to the CPU0, so that the CPUs 1, 2 and 3 are idle and automatically sleep; the power consumption is reduced;
when the CPU utilization rate of the server is more than 75%, the program does not process, the system distributes the processes and the threads to the CPUs 0, 1, 2 and 3 in a load balancing mode, and the CPUs 0, 1, 2 and 3 are all used.
When the four CPUs are configured, tests show that when the utilization rate of the system CPU is 40%, the system resource allocation is changed into unified processing of the CPU0, the CPU1-3 is dormant, and the overall power consumption of the CPU can be reduced by about 200W.
The more the number of CPUs, the more remarkable the power consumption reduction effect.
Example two
Based on the first embodiment, the present embodiment provides an apparatus for reducing power consumption of a server, where the server includes at least two CPUs, and includes the following functional modules.
CPU utilization detection module 101: detecting the utilization rate of a server CPU in real time;
the process thread switching module 102: judging whether the server is in low power consumption according to the utilization rate of the CPU of the server, and switching processes and threads on part of CPUs to the rest of CPUs;
the sleep start module 103: and switching the CPU which has migrated the process and the thread to a dormant state.
The process thread switching module 102 specifically includes the following functional units to implement switching between processes and threads.
CPU operation sleep number determination unit 102-1: determining the running number and the sleeping number of the CPUs according to the utilization rate of the CPUs of the server;
CPU selecting unit 102-2: selecting a corresponding CPU as a CPU to be dormant for the CPU to be operated based on the determined running number and the sleeping number of the CPU;
process thread switching unit 102-3: and switching the process and the thread on the CPU to be dormant to the CPU to be operated.
The CPU operation sleep number determination unit 102-1 determines the operation number and sleep number of the CPU according to the following processes:
determining a CPU utilization rate node according to a formula (1/n) × 100% × i; wherein n is the number of CPUs, i =1, 2 … … n-1, and n-1 CPU utilization nodes are determined;
when the utilization rate of the CPU of the server is less than or equal to (1/n) 100%, determining that the running number of the CPU is 1 and the dormancy number is n-1;
when the utilization rate of the CPU of the server is less than or equal to (1/n) × 100% ((k-1)) < 100% > (k), determining the running number of the CPU to be k, and the resting number to be n-k; wherein k is more than or equal to 2 and less than or equal to n-1;
when the utilization rate of the CPU of the server is > (1/n) × 100% > (n-1), the running number of the CPUs is determined to be n, and the sleeping number is determined to be 0.
The device automatically analyzes and implements system resource switching to enable part of the cpus to be idle and dormant; thereby reducing server power consumption.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A method for reducing power consumption of a server, the server including at least two CPUs, comprising the steps of:
detecting the utilization rate of a server CPU in real time;
judging whether the server is in low power consumption according to the utilization rate of the CPU of the server, and switching processes and threads on part of CPUs to the rest of CPUs;
and switching the CPU which has migrated the process and the thread to a dormant state.
2. The method for reducing the power consumption of the server according to claim 1, wherein when the server is judged to be in low power consumption according to the utilization rate of the server CPUs, the processes and threads on part of the CPUs are switched to the rest of the CPUs, specifically:
determining the running number and the sleeping number of the CPUs according to the utilization rate of the CPUs of the server;
selecting a corresponding CPU as a CPU to be operated and selecting the corresponding CPU as the CPU to be dormant based on the determined running number and the sleeping number of the CPUs;
and switching the process and the thread on the CPU to be dormant to the CPU to be operated.
3. The method for reducing the power consumption of the server according to claim 2, wherein the number of running CPUs and the number of sleeping CPUs are determined according to the utilization rate of the CPUs of the server, and specifically:
determining a CPU utilization rate node according to a formula (1/n) × 100% × i; wherein n is the number of CPUs, i =1, 2 … … n-1, and n-1 CPU utilization nodes are determined;
when the utilization rate of the CPU of the server is less than or equal to (1/n) 100%, determining that the running number of the CPU is 1 and the dormancy number is n-1;
when the utilization rate of the CPU of the server is less than or equal to (1/n) × 100% ((k-1)) < 100% > (k), determining the running number of the CPU to be k, and the resting number to be n-k; wherein k is more than or equal to 2 and less than or equal to n-1;
when the utilization rate of the CPU of the server is > (1/n) × 100% > (n-1), the running number of the CPUs is determined to be n, and the sleeping number is determined to be 0.
4. The method for reducing the power consumption of the server according to claim 2 or 3, wherein after the running number and the sleeping number of the CPUs are determined, the corresponding CPUs are selected as the CPUs to be put to sleep in the order from top to bottom according to the sequence numbers of the CPUs.
5. The method for reducing the power consumption of the server according to claim 4, wherein before the utilization rate of the CPU of the server is detected in real time, the PCIe devices are inserted into the CPU in the order from the lowest to the highest in the sequence number of the CPU.
6. The method of reducing power consumption of a server of claim 5, wherein the server BIOS is configured to allow the CPU to conserve power prior to detecting utilization of the server CPU in real time.
7. The method for reducing the power consumption of the server according to claim 2, 3, 5 or 6, wherein before the process and the thread on the CPU to be dormant are switched to the CPU to be run, the process and the thread on the CPU to be dormant are detected, and the process and the thread occupying the CPU resource are switched to the CPU to be run.
8. An apparatus for reducing power consumption of a server, the server including at least two CPUs, comprising,
CPU usage detection module: detecting the utilization rate of a server CPU in real time;
the process thread switching module: judging whether the server is in low power consumption according to the utilization rate of the CPU of the server, and switching processes and threads on part of CPUs to the rest of CPUs;
a dormancy starting module: and switching the CPU which has migrated the process and the thread to a dormant state.
9. The apparatus for reducing power consumption of a server according to claim 8, wherein the process thread switching module comprises,
CPU operation dormancy number determination unit: determining the running number and the sleeping number of the CPUs according to the utilization rate of the CPUs of the server;
a CPU selection unit: selecting a corresponding CPU as a CPU to be dormant for the CPU to be operated based on the determined running number and the sleeping number of the CPU;
a process thread switching unit: and switching the process and the thread on the CPU to be dormant to the CPU to be operated.
10. The apparatus for reducing power consumption of a server according to claim 9, wherein the CPU operation sleep number determining unit determines the operation number and the sleep number of the CPU according to the following procedure:
determining a CPU utilization rate node according to a formula (1/n) × 100% × i; wherein n is the number of CPUs, i =1, 2 … … n-1, and n-1 CPU utilization nodes are determined;
when the utilization rate of the CPU of the server is less than or equal to (1/n) 100%, determining that the running number of the CPU is 1 and the dormancy number is n-1;
when the utilization rate of the CPU of the server is less than or equal to (1/n) × 100% ((k-1)) < 100% > (k), determining the running number of the CPU to be k, and the resting number to be n-k; wherein k is more than or equal to 2 and less than or equal to n-1;
when the utilization rate of the CPU of the server is > (1/n) × 100% > (n-1), the running number of the CPUs is determined to be n, and the sleeping number is determined to be 0.
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| CN202010741915.3A CN111966208A (en) | 2020-07-29 | 2020-07-29 | Method and device for reducing power consumption of server |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114816031A (en) * | 2022-05-09 | 2022-07-29 | 海信电子科技（深圳）有限公司 | Power saving method of terminal device, terminal device and medium |
| US11914864B2 (en) | 2021-07-01 | 2024-02-27 | Samsung Electronics Co., Ltd. | Storage device and method of data management on a storage device |
-
2020
- 2020-07-29 CN CN202010741915.3A patent/CN111966208A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11914864B2 (en) | 2021-07-01 | 2024-02-27 | Samsung Electronics Co., Ltd. | Storage device and method of data management on a storage device |
| CN114816031A (en) * | 2022-05-09 | 2022-07-29 | 海信电子科技（深圳）有限公司 | Power saving method of terminal device, terminal device and medium |
| CN114816031B (en) * | 2022-05-09 | 2023-10-13 | 海信电子科技（深圳）有限公司 | Power saving method for terminal equipment, terminal equipment and medium |
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Application publication date: 20201120 |
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