Abstract: With the continuous development of cloud computing technology, cloud native has become an emerging application development and delivery model. Due to its high scalability, flexibility and agility, cloud-native applications are gaining more and more attention in today's software development field. Combined with the domestic mainstream technology environment (Java dominates enterprise-level applications), the road to cloud native is not easy. In the field of cloud computing, the cost of adopting Java is higher than some of its competitors. In this context, GraalVM, which has great potential in cloud-native application performance optimization, has attracted much attention. In order to give full play to the advantages of the cloud-native architecture and provide users with fast and convenient services, compare and analyze traditional Java and native Java applications based on GraalVM from the dimensions of resource occupation and startup speed, so as to help architects or developers in technology selection and improvement guidance on user experience.

Key words: Cloud native, native Java, GraalVM, Technology selection, Smart home