Cpu usage suddenly go 100%

edited September 2020 in ROG Phone
Model: ZS600KL
Firmware/APP Version: Android 9
Frequency of Occurrence: Occasionally
Rooted: No
APP Name:

Hi, my rog phone was updated recently, and i notice that my phone cpu occasionally when up to full usage of 100% for a period of time , and that time my phone was not running any apps that i know of , how can i detect the problem?
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