What is a QphH (Query-per-Hour Performance)?

The TPC-H Composite Query-per-Hour Performance (QphH@Size) is a metric used to reflect multiple aspects of a database system’s ability to process queries.

These aspects include the selected database size against which the queries are executed, the query processing power when queries are submitted by a single stream, and the query throughput when queries are submitted by multiple concurrent users. The TPC-H Price/Performance metric is expressed as $/QphH@Size.

Why use QphH?

If you’re after fast analytics is important to have high QphH. The faster the database, the higher the QphH value.

Did you know?

The QphH metric is unique to the TPC-H benchmark. Other benchmarks have a different matric suffix, for instance TPC-DS benchmark has a metric called QphDS.

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