If you ran a game written in C++ that kept running out of memory and crashing, would you say C++ is "heavy"? Solr (and Lucene internally) maintain large in-mem

If you ran a game written in C++ that kept running out of memory and crashing, would you say C++ is "heavy"? Solr (and Lucene internally) maintain large in-memory data structures as well as memory map (usually) on-disk segment files. How much memory they use is determined by many, many configuration options within Solr. This has nothing to do with the JVM. Same thing with Clojure. It basically bootstraps the entire Clojure environment on each process start. The JVM itself starts up in tens of milliseconds.