One caveat to pay attention to... Ever since LuaJIT and PUC-Lua diverged, PUC lua has made some significant changes to the garbage collector. I wonder if that might affect the comparison vs LuaJIT for memory intensive benchmarks such as binarytrees and tablesort.
As detailed in the article, the garbage collectors for all interpreters tested were disabled for all benchmarks because this interpreter does not yet have garbage collection.
