TWI704497B - Electronic apparatus and performance adjustment method thereof - Google Patents

Abstract

An electronic apparatus and a performance adjustment method thereof are provided. The electronic apparatus includes a first processor, a second processor, a power circuit and a control circuit. The power circuit is coupled to the first processor and the second processor and configured to provide a first power to the first processor for operation and provide a second power to the second processor for operation. The power circuit senses a current value consumed by the electronic apparatus and generates a current sensing value accordingly. The controller is coupled to the first processor and the second processor, and coupled to the power circuit to receive the current sensing value. The controller adjusts at least one of the first power and the second power according to the current sensing value.

Description

Electronic device and its performance adjustment method

The present invention relates to an electronic device and a performance adjustment method thereof, and more particularly to a method for adjusting the performance of multiple processors of the electronic device according to the current or power consumed by the electronic device.

In the computer system architecture, as the graphics processing unit (Graphics Processing Unit, GPU) is more powerful, the power consumed by it is also higher. However, when the heat dissipation capacity of the computer system is limited, most of the general computer system designs directly reduce the performance and power of the central processing unit (CPU) to ensure the performance and required power of the graphics processor. . In other words, as long as the graphics processor starts to operate, regardless of the actual load of the graphics processor or the amount of power required, the computer system will reduce the performance and power of the central processing unit. Such a system design will result in the performance of the computer system. Unable to achieve optimization. Therefore, how to adjust the performance of each processor in the computer system to optimize the overall performance of the computer system is one of the major issues faced by those skilled in the art.

In view of this, the present invention provides an electronic device and a performance adjustment method thereof, which can adjust the performance of multiple processors of the electronic device according to the current (or power) consumed by the electronic device to optimize the overall performance of the electronic device .

The electronic device of the present invention includes a first processor, a second processor, a power supply circuit, and a control circuit. The power circuit is coupled to the first processor and the second processor to provide the first power required for the operation of the first processor and the second power required for the operation of the second processor, and sense the current consumed by the electronic device Measure and generate the current sensing value accordingly. The control circuit is coupled to the first processor and the second processor, and is coupled to the power circuit to receive the current sensed value, wherein the control circuit adjusts at least one of the first power and the second power according to the current sensed value.

In an embodiment of the present invention, the above-mentioned control circuit looks up a plurality of corresponding reference power values in the look-up table according to the current sensing value, and sets the power of the first power and the second power according to the reference power values value.

The performance adjustment method of the present invention can be used for the first processor and the second processor of an electronic device. The performance adjustment method includes the following steps: providing the first power required for the operation of the first processor and the second power required for the operation of the second processor through the power circuit of the electronic device; and sensing the power consumed by the electronic device through the power circuit The amount of current is used to obtain a current sensing value; and at least one of the first power and the second power is adjusted according to the current sensing value through the control circuit of the electronic device.

Based on the above, the electronic device and its performance adjustment method proposed by the embodiments of the present invention can adjust the performance of the first processor and the second processor of the electronic device according to the current (or power) consumed by the electronic device and the look-up table. In order to optimize the overall performance of the electronic device.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

In order to make the content of the present invention more comprehensible, the following embodiments are specifically cited as examples on which the present invention can indeed be implemented. In addition, wherever possible, elements/components with the same reference numbers in the drawings and embodiments represent the same or similar components.

Please refer to FIG. 1 below. FIG. 1 is a circuit block diagram of an electronic device 100 according to an embodiment of the present invention. In an embodiment of the present invention, the electronic device 100 may be, for example, a personal computer (PC), a notebook PC (notebook PC), a tablet PC (tablet PC), a multimedia player, a television or a game console, etc. Etc., but the present invention is not limited to this. The electronic device 100 may include a first processor 110, a second processor 120, a power circuit 130, and a control circuit 140, but the invention is not limited thereto.

The power circuit 130 is coupled to the first processor 110 and the second processor 120 to provide the first power PW1 required for the operation of the first processor 110 and the second power PW2 required for the operation of the second processor 120, and sense The current consumed by the electronic device 100 is measured and the current sensing value SI is generated accordingly. The control circuit 140 is coupled to the first processor 110 and the second processor 120, and is coupled to the power circuit 130 to receive the current sensing value SI. In particular, the control circuit 140 can adjust at least one of the first power PW1 and the second power PW2 according to the current sensing value SI. In detail, the control circuit 140 can determine the overall workload of the electronic device 100 according to the current sensing value SI, and dynamically adjust at least one of the first power PW1 and the second power PW2 accordingly, thereby adjusting The performance of at least one of the first processor 110 and the second processor 120 is to optimize the overall performance of the electronic device 100.

In an embodiment of the present invention, the first processor 110 may be, for example, a central processing unit (CPU), and the second processor 120 may be, for example, a graphics processing unit (GPU). The invention is not limited to this.

In an embodiment of the present invention, the power circuit 130 can receive the input power PI provided by an external adapter (adaptor), and accordingly provide the first power PW1 and the second power PW2, but the present invention is not limited thereto. In an embodiment of the present invention, the power supply circuit 130 may be, for example, a charging control chip with a current sensing function, but the present invention is not limited to this.

In an embodiment of the present invention, the control circuit 140 may be hardware, firmware, or software or machine executable code stored in the memory and loaded and executed by the microcontroller. If implemented by hardware, the control circuit 140 can be implemented by a single integrated circuit chip or by multiple circuit chips, but the present invention is not limited to this. The above-mentioned multiple circuit chips or a single integrated circuit chip can be implemented using special function integrated circuits (ASIC), programmable logic gate array (FPGA) or complex programmable logic device (CPLD). The aforementioned memory can be, for example, random access memory, read-only memory, flash memory, or the like.

In an embodiment of the present invention, the electronic device 100 may also optionally include at least one peripheral circuit 150. However, for the sake of brevity, FIG. 1 only shows one peripheral circuit 150. In an embodiment of the present invention, the peripheral circuit may be, for example, a display panel or an input/output device, etc., but the present invention is not limited thereto. The peripheral circuit 150 is coupled to the power circuit 130. The power circuit 130 can provide the third power PW3 required by the peripheral circuit 150 to operate. It can be understood that the current sensing value SI (ie, the amount of current consumed by the electronic device 100) sensed by the power circuit 130 is the sum of the currents of the first power PW1, the second power PW2, and the third power PW3.

In an embodiment of the present invention, the control circuit 140 can find the corresponding multiple reference power values in the look-up table LUT according to the current sensing value SI, and the control circuit 140 can set the first power value according to the reference power values. The power value of PW1 and the power value of the second power PW2, in which the look-up table LUT can be established according to actual application or design requirements, and stored in the control circuit 140 or the memory (not shown), but the invention is not limited to this.

Hereinafter, the first processor 110 is used as a central processing unit (hereinafter referred to as central processing unit 110) and the second processor 120 is used as an example of a graphics processor (hereinafter referred to as graphics processor 120) to further illustrate the overall electronic device 100 Operation. It is assumed here that the maximum power of the input power supply PI provided by the adapter is 130 watts, the voltage of the first power PW1, the second power PW2, and the third power PW3 provided by the power circuit 130 is 19.5 volts, and the heat dissipation capability of the electronic device 100 is At 100 watts, the power required by the central processing unit 110 under the best performance is 45 watts, the full-load power value of the graphics processor 120 is 85 watts, and the power required by the peripheral circuit 150 is 25 watts. Therefore, a lookup table LUT such as shown in Table 1 can be established. The look-up table LUT shown in Table 1 includes a current sensing value SI (ie, the amount of current or power consumption value consumed by the electronic device 100) and a plurality of corresponding reference power values, where these reference power values may include the central processing unit 110 The power upper limit of, the power value of the graphics processor 120 and the power value of the peripheral circuit 130. In addition, Table 1 also lists the power value actually used by the CPU and the unused power value of the adapter. Table 1

For example, if the current sensing value SI sensed by the power supply circuit 130 is 4.5 amperes, the control circuit 140 can set the power upper limit of the central processing unit 110 according to the current sensing value SI and the lookup table in Table 1 ( That is, the power upper limit value of the first power PW1) is set to 45 watts, the power value supplied to the graphics processor 120 (that is, the power value of the second power PW2) is set to 43 watts, and the power value supplied to the peripheral circuits (That is, the power value of the third power PW3) is set to 25 watts. Although the power upper limit of the central processing unit 110 is set to 45 watts, the central processing unit 110 actually consumes only 20 watts.

It is worth mentioning here that when the current sensing value SI is less than or equal to the first critical value (for example, 4.5 amperes), the control circuit 140 can determine that the workload of the electronic device 100 is still light. Therefore, when the current sensing value SI rises (still less than or equal to the first critical value), the control circuit 140 can adjust the power value of the second power PW2 to increase the power value supplied to the graphics processor 120, but does not adjust the first A power upper limit value of the power PW1 (that is, the power upper limit value of the central processing unit 110). For example, as shown in Table 1, when the current sensing value SI increases from 4.0 amperes to 4.5 amperes, the power value of the graphics processor 120 will be increased from 33 watts to 43 watts, but the power limit of the central processing unit 110 The value remains at 45 watts. In other words, when the current sensing value SI is less than or equal to the first critical value, the control circuit 140 will not reduce the performance of the central processing unit 110 due to the improvement of the performance of the graphics processor 120.

When the current sensing value SI is greater than the first critical value (for example, 4.5 amperes) and less than or equal to the second critical value (for example, 6.0 amperes), the control circuit 140 can determine that the workload of the electronic device 100 is gradually increasing. Therefore, when the current sensing value SI rises (still greater than the first threshold value and less than or equal to the second threshold value), the control circuit 140 will increase the power value of the second power PW2 to increase the power supplied to the graphics processor 120 The power limit value of the first power PW1 (that is, the power limit value of the central processing unit 110) is reduced to gradually suppress the performance of the central processing unit 110. For example, as shown in Table 1, when the current sensing value SI increases from 5.0 amperes to 5.5 amperes, the power value of the graphics processor 120 will be increased from 53 watts to 62 watts, and the power limit of the central processing unit 110 The value will be reduced from 35 watts to 30 watts.

When the current sensing value SI is greater than the second critical value (for example, 6.0 amperes), the control circuit 140 can determine that the working load of the electronic device 100 is about to be fully loaded. Therefore, when the current sensing value SI rises (when it is greater than the second critical value), the control circuit 140 sets the power value of the second power PW2 to the full load power value of the graphics processor 120 to satisfy the full load of the graphics processor 120 Lower power demand and lower the power upper limit of the first power PW1 (ie the power upper limit of the central processing unit 110) to suppress the performance of the central processing unit 110 and ensure the first power PW1 and the second power PW2 The total power of is less than or equal to the heat dissipation capacity of the electronic device 100 to avoid thermal crash of the electronic device 100. For example, as shown in Table 1, when the current sensing value SI increases from 6.0 amperes to 6.5 amperes, the power value of the graphics processor 120 will be increased from 72 watts to 85 watts (that is, the full load power value of the graphics processor 120 ), and the power limit of the central processing unit 110 will be reduced from 25 watts to 20 watts. Since the actual power used by the CPU 110 at this time is 15 watts, and the highest power used by the graphics processor 120 is 85 watts, the sum of the power of the two is at most 100 watts, which does not exceed the heat dissipation capacity of the electronic device 100 ( That is 100 watts).

Please refer to FIG. 1 and FIG. 2 together. FIG. 2 is a performance adjustment method according to an embodiment of the present invention, which can be used for the electronic device 100 of FIG. 1, but is not limited thereto. The performance adjustment method of the electronic device 100 includes the following steps. First, in step S210, the first power PW1 required for the operation of the first processor 110 and the second power PW2 required for the operation of the second processor 120 can be provided through the power supply circuit 130. Then, in step S220, the amount of current consumed by the electronic device 100 can be sensed through the power circuit 130 to obtain the current sensing value SI. After that, in step S230, at least one of the first power PW1 and the second power PW2 can be adjusted according to the current sensing value SI through the control circuit 140.

In addition, the performance adjustment method of the electronic device according to the embodiment of the present invention can obtain sufficient teaching, suggestion and implementation description from the description of the embodiment in FIG. 1, so it is not repeated here.

In summary, the electronic device and its performance adjustment method proposed by the embodiments of the present invention can adjust the first processor and the second processor of the electronic device according to the current (or power) consumed by the electronic device and the look-up table. Performance to optimize the overall performance of the electronic device.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be determined by the scope of the attached patent application.

100‧‧‧Electronic device 110‧‧‧First processor 120‧‧‧Second processor 130‧‧‧Power circuit 140‧‧‧Control circuit 150‧‧‧Peripheral circuit LUT‧‧‧Look-up table PI‧‧‧ Input power PW1‧‧‧First power PW2‧‧‧Second power PW3‧‧‧Third power SI‧‧‧Current sensing values S210, S220, S230‧‧‧Steps

The accompanying drawings below are a part of the specification of the present invention, and illustrate exemplary embodiments of the present invention. The accompanying drawings and the description of the specification illustrate the principle of the present invention. FIG. 1 is a circuit block diagram of an electronic device according to an embodiment of the invention. FIG. 2 is a performance adjustment method according to an embodiment of the invention.

100‧‧‧Electronic device

110‧‧‧First processor

120‧‧‧Second processor

130‧‧‧Power circuit

140‧‧‧Control circuit

150‧‧‧peripheral circuit

LUT‧‧‧Lookup table

PI‧‧‧Input power

PW1‧‧‧First Power

PW2‧‧‧Second power

PW3‧‧‧Third Power

SI‧‧‧Current sensing value

Claims (9)

An electronic device, comprising: a first processor; a second processor; a power circuit, coupled to the first processor and the second processor, for providing a first processor required for the operation of the first processor A power and a second power required for the operation of the second processor, and sense the amount of current consumed by the electronic device and generate a current sense value accordingly; and a control circuit coupled to the first processor And the second processor, and is coupled to the power circuit to receive the current sensed value, wherein the control circuit adjusts at least one of the first power and the second power according to the current sensed value, wherein when the current When the sensing value is less than or equal to a first critical value, the control circuit increases the power value of the second power in response to the increase of the current sensing value, and does not adjust the power upper limit of the first power. For the electronic device described in item 1 of the scope of patent application, the control circuit finds out a plurality of corresponding reference power values in a look-up table according to the current sensing value, and sets the first reference power value according to the reference power values. The power value of the electric power and the second electric power. The electronic device according to claim 1, wherein when the current sensing value is greater than the first threshold value and less than or equal to a second threshold value, the control circuit responds to the increase in the current sensing value Increase the power value of the second power to And reducing the power upper limit value of the first electric power, wherein the first critical value is smaller than the second critical value. The electronic device described in item 3 of the scope of patent application, wherein when the current sensing value is greater than the second critical value, the control circuit sets the power value of the second power as a full load power of the second processor Value, and reducing the power upper limit of the first power, so that the total power of the first power and the second power is less than or equal to a heat dissipation capacity of the electronic device. The electronic device described in claim 1 further includes: at least one peripheral circuit coupled to the power supply circuit to receive at least one third power, wherein the current sensing value is the first power and the second power And the sum of the current of the at least one third power. A performance adjustment method for a first processor and a second processor of an electronic device includes: providing a first power required for the operation of the first processor and the second processor through a power circuit of the electronic device A second power required for the operation of the two processors; sensing the amount of current consumed by the electronic device through the power circuit to obtain a current sensing value; and adjusting according to the current sensing value through a control circuit of the electronic device At least one of the first power and the second power, wherein the step of adjusting at least one of the first power and the second power according to the current sensing value through the control circuit includes: when the current sensing value is less than Or equal to a first critical value, it is reflected in the The increase in the current sensed value increases the power value of the second power without adjusting the power upper limit of the first power. According to the performance adjustment method of claim 6, wherein the step of adjusting at least one of the first power and the second power according to the current sensing value through the control circuit includes: Finding out a plurality of corresponding reference power values in a look-up table; and setting the power values of the first power and the second power according to the reference power values. According to the performance adjustment method described in claim 6, wherein the step of adjusting at least one of the first power and the second power according to the current sensing value through the control circuit further includes: when the current sensing value When greater than the first threshold value and less than or equal to a second threshold value, the power value of the second power is increased in response to the increase in the current sensing value, and the power upper limit value of the first power is decreased, The first critical value is smaller than the second critical value. According to the performance adjustment method described in claim 8, wherein the step of adjusting at least one of the first power and the second power according to the current sensing value through the control circuit further includes: when the current sensing value When greater than the second critical value, the power value of the second power is set to a full-load power value of the second processor, and the power upper limit value of the first power is reduced, so that the first power and the first power The total power of the two powers is less than or equal to A heat dissipation capability of the electronic device.

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