TPC-H is a benchmark designed to evaluate the performance of database management systems. It simulates a decision support system by using a set of complex queries and large volumes of data. The benchmark focuses on measuring how well a system can handle ad-hoc queries and data analysis. The TPC-H benchmark consists of 22 different queries that test various aspects of database performance, such as data retrieval, processing speed, and scalability. It is widely used by organizations to compare the efficiency of different database solutions and to ensure they meet performance requirements for business intelligence applications.