15-445/645 Database Systems (Fall 2021)-Lecture Notes-12 Query Execution II

• Increased performance in throughput (more queries per second) and latency (less time per query). • Increased responsiveness and availability from the perspective of external clients of the DBMS. • Potentially lower total cost of ownership (TCO). This cost includes both the hardware procurement and software license, as well as the labor overhead of deploying the DBMS and the energy needed to run the machines.