> Java is usually within factor of two No. That's on synthetic benchmarks. Run a real server and you see that Java shits its pants while a C++ service is runni

> Java is usually within factor of two No. That's on synthetic benchmarks. Run a real server and you see that Java shits its pants while a C++ service is running rings around it. That's because memory/cache fragmentation and usage is vastly more important in 2019 than CPU cycles.