An Amazon/AWS engineer raised the alarms on Friday over the current Linux 7.0 development kernel leading to the throughput for the PostgreSQL database server being around half that of prior kernel versions. The culprit halving the PostgreSQL performance is known but a revert looks like it may not happen and currently suggesting that PostgreSQL may need to be adapted. Salvatore Dipietro of Amazon/AWS reported a throughput and latency regression for PostgreSQL. They found Linux 7.0 in its near-fin...