🔗 Lies, damn lies and database benchmarks

Benchmarks often mislead the tech community, leading to skewed perceptions of database performance. Andrey Pechkurov, a Core Database Engineer, illustrates how database benchmarks, like ClickBench, resemble a chaotic contest where the rules don’t always equate to true performance measurement. By examining the ClickBench benchmarking process, Pechkurov reveals the challenges of comparing different database engines. The article emphasizes the importance of understanding how benchmarks run and how they can be manipulated based on the environments in which databases operate. This piece stands as a critical commentary on how numbers can misrepresent reality in database performance comparisons, particularly revealing insights about the cold versus hot run metrics, and what these mean for hosted versus self-managed systems. Pechkurov’s findings serve as a reminder that while benchmarks are valuable tools, they should be interpreted with a discerning eye.