Update

HotPy is no longer being developed. The optimisation techniques developed in HotPy will now be ported to HotPy(2) a branch of the standard CPython VM. HotPy(2) will be binary compatible with CPython as well as providing considerably improved performance.

Summary

The HotPy virtual machine is a high-performance virtual machine for Python.

The notable features of HotPy are:

• It is built using the GVMT
• The base VM is designed to be optimisable, and is simpler in internal design than the standard CPython VM.
• It offers significantly improved performance by:
• Tracing execution to find linear traces suitable for optimisation.
• Optimising the linear traces, using type information gathered at runtime.
• Compiling the traces into native machine code.

How it works.