3 ms·

> Java with a jit compiler The JRE is substantially C++.

• blinkingled 16y ago
  Not all JREs are - Jikes RVM for example is implemented in Java and yet has decent performance - http://jikesrvm.org/FAQ#FAQ-GeneralWhatIs http://jikesrvm.org/FAQ#FAQ-GeneralWhatIs
  • 16s 16y ago
    The speed-critical parts (like HotSpot) are most certainly written in C++.
    • blinkingled 16y ago
      From TFA I linked - Jikes RVM is unique in that it is the first self-bootstrapped virtual machine written entirely in the Java programming language, i.e., its Java code runs on itself, without requiring a second virtual machine.