Towards Database and Serverless Runtime Co-Design.

In serverless computing, minimizing database access latency is crucial, but databases predominantly reside in cloud environments, necessitating costly network round-trips. Embedding an in-process database library such as SQLite into the serverless runtime is the holy grail for low-latency database access. However, SQLite's architecture limits concurrency and multitenancy, which is essential for serverless providers, forcing us to rethink the architecture for integrating a database library. We propose changing the SQLite virtual machine to provide asynchronous bytecode instructions to avoid blocking in the library and decoupling the query and storage engines to facilitate database and serverless runtime co-design.