Method and device for testing page perceived performance

The invention discloses a method and a device for testing a page perceived performance. The method comprises the steps of recording a load process of a page as N frames of screenshots according to a load time; calculating out a pixel change speed and an accelerated speed between each frame of the screenshots, and finding out accelerated speed discrete values which are beyond at least one standard deviation therefrom; taking each frame of the screenshots corresponding to the found accelerated speed discrete values as a key frame in the page load process; calculating out a speed for pixel change in a target area of each key frame, and finding out a first speed discrete value which is beyond the at least one standard deviation therefrom according to an order of the page load time; taking the frame of the screenshots corresponding to the first speed discrete value as a target key frame in all key frames; and determining the load time used from starting to load the page to loading the target key frame. According t