本文讨论了Mooncake统一内存池中的驱逐策略，强调在处理softpin对象时，驱逐应以迁移为主，而非删除。借鉴Linux内存回收机制，提出分层的驱逐逻辑，以优化内存管理，确保在线操作的高效性和稳定性。

In PostgreSQL, vacuuming is a maintenance task that helps to optimize database performance and reclaim space. It involves removing deleted or outdated rows from tables and indexes and updating...