Honestly I think this is something that will become less and less important as time goes on. The JDK, for example, has 4 separate garbage collectors that can be

Honestly I think this is something that will become less and less important as time goes on. The JDK, for example, has 4 separate garbage collectors that can be selected via configuration. But with runtime information (whether via JIT or PGO), couldn't they be better selected automatically for a given runtime profile? I think as compilers continue to build better optimization capabilities, that the gap between GC and manual memory management will shrink to the same significance as the gap between C and assembly today.