Why use Performance
The purpose of GC is to realize the virtuous cycle of memory space
; the cornerstone of the virtuous cycle is to use
properly at all times to determine whether it is reasonable
Performance provides multiple monitoring methods
Open a browser and enter the target website
into the developer tools panel. Select the Performance
to open the recording function. Visit the specific interface
to perform user behaviors

interface appears lazy loading or frequent pauses
interface continues to show poor performance
interface performance becomes worse and worse with time delay
The way to monitor memory
standard
memory leak: is the continuous increase of memory
memory bloat: performance problems exist on most devices
frequent garbage collection: analyzed by memory change graph
Method:
browser task manager
Timeline graph record
heap snapshot lookup decouple DOM
determines whether frequent garbage collection occurs