[Xiaomi Poco X3 Pro] Haldi4803:
I don't like what i'm seeing here....

Not sure how accurat that is. But at first look it seems like whenever the screen is powered on the CPU runs on maximum Clock... wtf? is that Normal for SD860 devices? Or Xiaomi phones?

On the Frequency chart... whenever it's maximized i had the screen on, on the Temperature and CPU Utilization you can see when i started some CPULoad threads.

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Edit: Yes... CPU Throttling Test shows the same...

And not just because USB is plugged in. Does the same without.

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Edit:

I don't know what exactly the phone was doing, but for some reasing it drained the battery really really fast (See test in Spoiler). Redid the thest. Maximum Brightness lost 10% from 100 to 90 in 1 hour.

Average 6Min27 Seconds per %. So roughly 10h 45 mins for a full battery.

On Minimum Brightness i testet for 7 hours. from 63% to 47%. On Average 26Minutes 26 Seconds per %. Which would result in 44h SoT.

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Spoiler content hidden.

Edit 2:

Yeah.... Frequency always at max whenever the screen is on. for most of the time..

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Screen off does allow the cores to clock down:

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But lets got a little Further into Powerdrain...

Using Stock Charger didnt work, so i plugged my ult HTC10 Charger. With that i charged to phone to 100%, and saw the 0.025A Powerdrain. The Internal Measurement Tool only sees battery Discharge and showed me 2-3mA current! Working well.

Calculating Voltage*Current = Power

So here we have the Graph. With mentions on what section measures what and their punctual power usage :) Using the CPU Load Generator to create up to 16 Threads to generate a full load. Then Thermal Throttling kicks in and reduces the performance.

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After 12 Minutes of testing i stopped as a continous full power CPU load is rather unrealistic, this would be more interesting done with a GPU load, But i'm not really a gamer on Mobiles so i'll do that someday later... probably...

To make sure everything works the same before and after testing i've done another screen on idle and screen off interval.

Because i used Auto Screen brightness in this test i've made another one with Manual Screen Brightness and showing a Full While image on the screen. (yeah i use 120hz mod exclusively... might have been interesting to see difference to 60hz though....)

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Interesting to see here is the 2nd Max Brightness test (Around minute 4), because when i have the Album open showing the full white image, and then wildly press on the screen the phone uses some kind of "touch Boost" feature. The Powerdrain is plainly higher then simply displaying the image.

You can also see the peaks whenever i started something because i needed to open apps, change settings and stuff which results in more work, more power drawn than simply displaying a white image.

Going by these values i should get between 11h and 37h SoT Depending on Screen Brightness if the phone is in flight mode and in full idle.

I have no clue why the other test above from 77% to 0% only did 6hours.