"Physique" metaphysics: How to check PVS value of Xiaolong 801 | Love playing computer - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

Earlier, we introduced Qualcomm Snapdragon series processors Query method of PVS value In the high-end processor market dominated by Snapdragon 801, the definition and viewing method of PVS values have changed to some extent. How to view the physique of Snapdragon 801? Let's see:

First, let's review the problem, What is "constitution"?

First of all, let's understand the question: what is "constitution"? Friends who like playing computer DIY and overclocking believe that they will not be unfamiliar with this word. A CPU with good physique can overclock to a higher frequency under "silent power". Similarly, for the CPU of mobile phones, CPU with good physique needs lower voltage when reaching high frequency, which makes the operating temperature lower, and of course, saves power . The temperature will affect the frequency reduction at high temperature, so CPU with good physique is easier to maintain high-frequency state for a long time, and its performance is better On the other hand, Qualcomm Snapdragon series processors have "humanized" the quantification of this "physique", which is called PVS value. It has developed from four levels of slow, normal, fast and fast in the APQ8064 era (some of which will also be displayed digitally) to seven levels of Snapdragon 600 and Snapdragon 800. The Snapdragon 801 includes 16 levels of PVS, ranging from 0 to 15.

We won't introduce the physical fitness of APQ8064, Snapdragon 600 and Snapdragon 800 in detail here, but interested friends can click: Pro, put together an RP? Qualcomm Snapdragon Processor View Constitution Method

Let's take a look at how Snapdragon 801 (including MSM8X74AB and MSM8X74AC) views physique:

1. LG mobile phone

The most simple and crude "Big Lucky Money" is introduced first. The engineering mode function of LG mobile phone is quite powerful. In addition to detecting the function of the hardware itself, you can also view some information about the body, including PVS values. Here, the latest flagship G3 of LG is taken as an example, Korean G3 The model of is F400L/K/S, so the code of engineering mode is 3845 # * 400 # (where 400 is the model, if it is F320 of Korean G2, enter 3845 # * 320 #, and so on) ▼

After entering, you will see the following English menu and select Version Info ▼

Pull the menu to the bottom, you can see the PVS value. Our G3 is a sad 4 ▼

2. Snapdragon 801 mobile phone with older system source code

For the Snapdragon 801 mobile phone with older system source code, you can still use the information in acpuclk to determine the PVS value of the mobile phone and the voltage at different frequencies. In our common mobile phones, OPPO Find 7 、 vivo Xplay3S 、 Vivo Xshot and One plus (ColorOS version) can use this method to view physique.

After opening the RE Manager, go to the system root directory and open the following directory "/d/apuck". If you can see the "pvs_bin" file, use the file viewer to open ▼

The following is a standard Find 7 (MSM8974AC) with a physical fitness of 5 (also very tragic) ▼

Let's see how to define the operating voltage of the Find 7. At 2265MHz, the CPU voltage is 1035mv, and at 2457MHz, the CPU voltage is 1070mv ▼

Let's look at another Xshot (MSM8974AC) voltmeter of Constitution 4. At 2265MHz, the CPU voltage is 1045mv, and at 2457MHz, the CPU voltage is 1080mv. It can be seen that, Under the same frequency state, the operating voltage of Constitution 4 is 10 mv higher than that of Constitution 5, resulting in relative power consumption and high temperature ▼

The following is the Oneplus One of Physique 8. At 2265MHz, the CPU voltage is 1005mv, and at 2457MHz, the CPU voltage is 1040mv ▼

Let's look at the situation of MSM8974AB. Let's look at an Xplay3S voltmeter with Constitution 14. At 2265MHz, the CPU voltage only needs 980mv ▼

3. Snapdragon 801 with newer system source code

The Snapdragon 801 with the new system source code will not have the acpuclk folder in the system root directory/d/directory, so the pvs_bin file and voltmeter cannot be found. At this time, we need to use the last method to determine the pvs value of the mobile phone. This method is based on the premise that the mobile phone has obtained root permission. This method needs to cooperate with the computer, configure the adb environment, and type in the command line status: adb shell su -c dmesg | find /i "pvs"， As shown in the figure, if you view the contents of the dmesg file containing pvs, you can see that the first sentence filtered out is the value of the PVS bin we need ▼

The above are some ways to check the constitution of Snapdragon 801. How much is your mobile phone constitution?