Architecture Design and Performance Analysis of Mobile Instant Chat System based on Asynchronous Communication Model

With the rapid development of smart phones and mobile Internet, mobile instant messaging (IM) has become an indispensable tool in daily life, especially in various mobile applications, whose needs are increasingly diversified and efficient. In order to meet this demand, an architecture of mobile instant messaging system based on asynchronous communication mechanism is proposed in this paper, and the system performance is analyzed in detail. Based on the investigation of the existing instant messaging system, this paper summarizes its core functions and technical requirements, and focuses on the key issues such as data transmission protocol and system security. We designed a five-layer layered architecture that covers everything from the user interface to data processing, especially optimized for high concurrency and low latency requirements. In terms of function design, this paper realizes the core modules such as user login, message push and contact management, and optimizes the network efficiency of the system through incremental data synchronization and simplified communication protocol. The experimental results show that the designed system has excellent performance in functional integrity, compatibility and performance, especially in response speed and system stability. The research shows that the architecture based on asynchronous communication model can effectively improve the system throughput, reduce the delay, optimize the user experience, and has high application value.