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PostgreSQL 13 Benchmark: Memory Speed vs. TPS
CRANK
Today I'm changing the memory speed on my main test system, going from 2133MHz to 3200MHz, and measuring how that impacts PostgreSQL SELECT results. I'm seeing a 3% gain on this server, but as always with databases that's only on a narrow set of in-memory use cases.
1 comments
PostgreSQL13でMemoryのbandwidthを変更しながら、pgbenchで性能差を測定した記事。最近はここまで測定することは少ないかも。DISCUSSIONにあるように、メモリのbandwidthよりもlatencyのほうが重要という指摘は評価結果を見てみたい。