CockroachDB is designed to be a reliable and high-performing database for global-scale, mission-critical workloads, as evidenced by its use by major companies such as DoorDash and Netflix. To ensure its capabilities, Cockroach Labs conducts extensive stress-testing and benchmarking, including daily, weekly, and pre-release tests using industry-standard benchmarks like TPC-C and TPC-E, as well as custom tests that closely mimic customer workloads. These tests evaluate various performance aspects, including transaction throughput, latency, scalability, and system behavior under typical operations like backup and schema changes. The database's performance is continuously refined through microbenchmarks that detect subtle changes in system components, and Cockroach Labs collaborates with customers to test specific use cases at large scales. Recent tests have explored the database's capacity to handle complex queries, high transaction rates, and significant storage requirements, ensuring functional correctness and identifying areas for optimization.