ApsaraDB RDS for PostgreSQL performance benchmarks use two metrics: transactions per second (TPS) and queries per second (QPS).
| Metric | Definition |
|---|---|
| TPS (transactions per second) | The number of transactions completed per second. Each transaction consists of 18 SQL statements. |
| QPS (queries per second) | The number of SQL statements executed per second, covering read, write, and other operations. |
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