openGemini is an open source time series database system, and it is the common wish of the majority of developers that the community will develop better and better. As one of the most critical indicators of the database, performance largely determines how far the community can go in the future. On the other hand, databases have become an important part of enterprise information construction, and database performance is one of the key factors in enterprise information construction. The performance of the database directly affects the business processes and efficiency of the enterprise. Therefore, optimizing the performance of the database is very important. Because of this, the community has always regarded performance optimization as a long-term task for the community.