> That’s assuming CPU bound workloads. C++ spends just as long as Ruby waiting on a database query. Some of the TechEmpower benchmarks have a significant datab

> That’s assuming CPU bound workloads. C++ spends just as long as Ruby waiting on a database query. Some of the TechEmpower benchmarks have a significant database component as well. Obviously if you have database queries taking 0.5s or more then it's a different story, but in my experience the server language/framework still has a large impact on total performance even with the database in the equation. In my experience, memory footprint is also a huge variable. For example, I rewrote a certain gRPC service in Rust and cut the memory usage by almost 80% relative to the initial implementation in a higher level language. We weren't bottlenecked on requests/second performance but being able to scale down our memory usage had a huge impact on cloud costs.