C++17/20 is superior to Go, and widely used, for anything that looks like high-performance data infrastructure, which is a broad class of software. There are cl

C++17/20 is superior to Go, and widely used, for anything that looks like high-performance data infrastructure, which is a broad class of software. There are classes of common architectural optimizations that aren't feasible with a garbage collector because of how it interacts with scheduling and CPU caches. Even 1 millisecond for a GC pause -- often considered "low latency" -- is much too slow when standard operation rates are tens of millions per second. Go is very good for many things but it does not offer competitive performance for these types of applications because design elements that have a large impact on throughput are poorly supported.