In case you are interested: https://github.com/smarr/are-we-fast-yet is a benchmark suite I already used with my SOM Smalltalk implementations (see https://github.com/rochus-keller/smalltalk/ and https://github.com/rochus-keller/som/). Here is the description of the benchmark suite: https://stefan-marr.de/papers/dls-marr-et-al-cross-language-compiler-benchmarking-are-we-fast-yet/. Applied to different Lua VM versions, I get these results: http://software.rochus-keller.ch/are-we-fast-yet_lua_results_2020年10月12日.pdf I currently try to run the benchmark (plain Lua) with Pallene and consider to try a similar approach with my SOM implementation (which heavily depends on closures and thus doesn't profit from a speed-up on LuaJIT). Any thoughts? Best R.