Setting aside GC, nailgun (JDK <= 8?) and drip already solves/d short-running VMs. This is often how to speed-up CLI tools like JRuby, ant, mvn, sbt, etc. Also

Setting aside GC, nailgun (JDK <= 8?) and drip already solves/d short-running VMs. This is often how to speed-up CLI tools like JRuby, ant, mvn, sbt, etc. Also these help reduce load times: - Class Data Sharing (CDS; JDK 5+) https://docs.oracle.com/en/java/javase/11/vm/class-data-sharing.html https://docs.oracle.com/en/java/javase/11/vm/class-data-shar... - Application Class Data Sharing (AppCDS; JDK 10+) https://openjdk.java.net/jeps/310 https://openjdk.java.net/jeps/310 - Ahead-Of-Time compilation (AOT; jaotc; JDK 9+ Linux-x86_64 only): http://openjdk.java.net/jeps/295 http://openjdk.java.net/jeps/295 - JVM runtime trimmer (jlink; JDK 9+): http://openjdk.java.net/jeps/282 http://openjdk.java.net/jeps/282 --- Drip: https://github.com/ninjudd/drip https://github.com/ninjudd/drip Nailgun: https://github.com/facebook/nailgun https://github.com/facebook/nailgun http://www.martiansoftware.com/nailgun http://www.martiansoftware.com/nailgun