[karkisuni]

Didn't go too deep into it, but the AMD cpus being compared are different. Anandtech has an AWS-only EPYC 7571 (2 socket, 32 cores each, 2.5ghz), Phoronix has EPYC 7742 (1 socket, 64 cores, 2.2ghz). On top of that, Anandtech is using another AWS ec2 instance and Phoronix is testing on a local machine on bare metal.

Still would be interesting to know what differences caused the gap in results, but their setups were pretty different.

[jeffbee]

That doesn't seem like it could explain a 20x difference in PostgreSQL performance.