TW202004499A - 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 its performance adjustment method, and in particular to a method for adjusting the performance of multiple processors of an electronic device according to the current or power consumed by the electronic device.

In the computer system architecture, the more powerful the graphics processing unit (Graphics Processing Unit, GPU) is, the higher the wattage it consumes. However, in the case of limited heat dissipation capacity of the computer system, most of the general computer system design directly reduces 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 processor. 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 facing those skilled in the art.

In view of this, the present invention provides an electronic device and its performance adjustment method, which can adjust the performance of multiple processors of the electronic device according to the current (or power) consumed by the electronic device, so as 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 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 to 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 sensing value, wherein the control circuit adjusts at least one of the first power and the second power according to the current sensing value.

In an embodiment of the invention, the above-mentioned control circuit finds corresponding reference power values in a 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 the 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; sensing the power consumed by the electronic device through the power circuit The amount of current to obtain the current sense value; and at least one of the first power and the second power is adjusted according to the current sense value through the control circuit of the electronic device.

Based on the above, the electronic device and the performance adjustment method thereof according to 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 obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

In order to make the content of the present invention easier to understand, the following specific embodiments are taken as examples on which the present invention can indeed be implemented. In addition, wherever possible, elements/components with the same reference numerals in the drawings and embodiments represent the same or similar components.

Please refer to FIG. 1 below. FIG. 1 is a schematic block diagram of an electronic device 100 according to an embodiment of the 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. However, the 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. The amount of current consumed by the electronic device 100 is measured to generate a current sensing value SI. 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 weight of 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 to adjust 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 invention, the power circuit 130 may be, for example, a charge control chip with a current sensing function, but the invention is not limited thereto.

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

In an embodiment of the invention, the electronic device 100 may optionally include at least one peripheral circuit 150. However, for the sake of simplicity, FIG. 1 only shows one peripheral circuit 150. In an embodiment of the invention, the peripheral circuit may be, for example, a display panel, an input/output device, etc., but the 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 for the operation of the peripheral circuit 150. It can be understood that the current sensing value SI (that is, 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 look up corresponding reference power values in a lookup table LUT according to the current sensing value SI, and the control circuit 140 can set the first power according to the reference power values The power value of PW1 and the power value of the second power PW2, wherein the look-up table LUT can be created according to actual application or design requirements, and stored in the control circuit 140 or memory (not shown), but the invention is not limited to this.

In the following, the first processor 110 is a central processor (hereinafter referred to as the central processor 110) and the second processor 120 is a graphics processor (hereinafter referred to as the graphics processor 120) as an example to further illustrate the overall electronic device 100 Operation. Here, it is assumed that the maximum power of the input power 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 capacity of the electronic device 100 is At 100 watts, the power value required by the central processing unit 110 for optimal 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 look-up table LUT such as shown in Table 1 can be established. The look-up table LUT shown in Table 1 includes the current sensing value SI (ie, the amount of current consumed by the electronic device 100 or the power consumption value) and corresponding multiple reference power values, where such reference power values may include the central processing unit 110 The upper limit of the power, the power value of the graphics processor 120, and the power value of the peripheral circuit 130. In addition, Table 1 also lists the actual power value used by the CPU and the unused power value of the adapter. Table 1

For example, if the current sense value SI sensed by the power supply circuit 130 is 4.5 amperes, the control circuit 140 may set the power upper limit of the CPU 110 according to the current sense value SI and the lookup table in Table 1. That is, the upper limit of the power 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 upper limit of the power of the central processor 110 is set at 45 watts, the central processor 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 threshold (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 sense value SI rises (still less than or equal to the first critical value), the control circuit 140 can increase the power value of the second power PW2 to increase the power value supplied to the graphics processor 120, but does not adjust the The power upper limit value of a 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 sense value SI rises 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 processor 110 The value remains at 45 watts. That is to say, when the current sensing value SI is less than or equal to the first threshold, 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 (eg, 4.5 amperes) and less than or equal to the second critical value (eg, 6.0 amperes), the control circuit 140 may determine that the workload of the electronic device 100 is gradually increasing. Therefore, when the current sense 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 Value, and lowering the power upper limit value of the first power PW1 (that is, the power upper limit value of the central processing unit 110) to gradually suppress the performance of the central processing unit 110. For example, as shown in Table 1, when the current sense value SI rises 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 processor 110 The value will be reduced from 35 watts to 30 watts.

When the current sensing value SI is greater than the second threshold (for example, 6.0 amperes), the control circuit 140 can determine that the workload of the electronic device 100 is about to be fully loaded. Therefore, when the current sensing value SI rises (in the case where it is greater than the second threshold), 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 lowering the power upper limit of the first power PW1 (that is, the power upper limit of the central processor 110) to suppress the performance of the central processor 110 and ensure the first power PW1 and the second power PW2 The sum of the power is less than or equal to the heat dissipation capacity of the electronic device 100 to avoid the electronic device 100 being thermally crashed. 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 upper limit of the central processor 110 will be adjusted from 25 watts to 20 watts. Since the actual power value of the CPU 110 at this time is 15 watts, and the maximum power value of the graphics processor 120 is 85 watts, the total 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).

In the following, 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 in 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 circuit 130. Next, in step S220, the power circuit 130 can sense the amount of current consumed by the electronic device 100 to obtain the current sensing value SI. Then, 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 method for adjusting the performance of the electronic device according to the embodiment of the present invention can obtain sufficient teaching, suggestions, and implementation descriptions from the description of the embodiment in FIG.

In summary, the electronic device and its performance adjustment method proposed in 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 electronic devices.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person 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 subject to the scope defined in the appended patent application.

100‧‧‧Electronic device 110‧‧‧ First processor 120‧‧‧ Second processor 130‧‧‧Power supply 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 value S210, S220, S230‧‧‧ Step

The following drawings are part of the description of the present invention, and illustrate exemplary embodiments of the present invention. The drawings together with the description of the description illustrate the principle of the present invention. FIG. 1 is a schematic 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 Electricity

PW3‧‧‧Third Power

SI‧‧‧Current sensing value

Claims (11)

An electronic device includes: 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 sense value, wherein the control circuit adjusts at least one of the first power and the second power according to the current sense value. The electronic device as described in item 1 of the patent application scope, wherein the control circuit finds corresponding reference power values in a look-up table according to the current sensing value, and sets the first according to the reference power values The power value of the power and the second power. The electronic device as described in item 1 of the patent application scope, wherein when the current sense value is less than or equal to a first threshold value, the control circuit increases the power of the second power in response to the rise of the current sense value The power value, and the power upper limit value of the first power is not adjusted. The electronic device as described in item 2 of the patent application scope, wherein when the current sensing value is greater than the first critical value and less than or equal to a second critical value, the control circuit reacts to the rise of the current sensing value Raising the power value of the second power and lowering the power upper limit of the first power, wherein the first critical value is smaller than the second critical value. The electronic device of claim 3, wherein when the current sense value is greater than the second threshold, the control circuit sets the power value of the second power to a full load power of the second processor Value, and lowering the power upper limit of the first power, so that the sum of the 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 as described in item 1 of the patent application scope further comprises: at least one peripheral circuit coupled to the power circuit to receive at least a third power, wherein the current sensing value is the first power and the second power And the current sum of the at least one third power. A performance adjustment method for a first processor and a second processor of an electronic device, including: providing a first power required by the operation of the first processor and the first 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 sense value; and adjusting according to the current sense value through a control circuit of the electronic device At least one of the first power and the second power. The performance adjustment method as described in item 7 of the patent application scope, wherein the step of adjusting at least one of the first power and the second power according to the current sense value through the control circuit includes: according to the current sense value Finding corresponding reference power values in a lookup table; and setting the power values of the first power and the second power according to the reference power values. The performance adjustment method as described in item 7 of the patent application scope, wherein the step of adjusting at least one of the first power and the second power according to the current sense value through the control circuit includes: when the current sense value is less than Or equal to a first critical value, the power value of the second power is adjusted up in response to the rise of the current sensing value and the power upper limit of the first power is not adjusted. The performance adjustment method according to item 9 of the patent application scope, wherein the step of adjusting at least one of the first power and the second power according to the current sense value through the control circuit further includes: when the current sense value When it is greater than the first critical value and less than or equal to a second critical value, the power value of the second power is increased in response to the rise of the current sensing value, and the power upper limit of the first power is decreased, The first critical value is smaller than the second critical value. The performance adjustment method as described in item 10 of the patent application range, wherein the step of adjusting at least one of the first power and the second power according to the current sense value through the control circuit further includes: when the current sense value When it is 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 sum of the power of the two powers is less than or equal to the heat dissipation capacity of the electronic device.

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