OLTP Engines on Modern Storage Architectures

Online transaction processing (OLTP) engines are crucial components of database systems, facing significant challenges due to the rapid growth of data on the Internet. Memory-oriented OLTP engines struggle with the cost and capacity limitations of hosting large data volumes, while disk-oriented engines suffer performance degradation when their working set size exceeds available memory. Limitations in DRAM density and disk latency hinder scalability and service quality, complicating large-scale data management and transaction execution.