Optimization Method for Startup Speed of Real-time Process Applications Based on Qt in Embedded Operating System

Aiming at the problems that QT-based real-time process applications in Embedded Operating System operating system are slow to load Qt dynamic library and slow to parse Chinese fonts, which affect the startup speed of the program, this paper proposes a method to optimize the startup speed of real-time process applications. This method implements font pre-rendering and independent romfs loading on the basis of the resource pre-caching method. The experimental results show that the proposed method significantly improves the startup speed of the applications.