> Are you sure PyPy can overtake LuaJit after warmup. I think it can maybe do it in a micro > benchmark but I doute that in a complex benchmark PyPy has any cha

> Are you sure PyPy can overtake LuaJit after warmup. I think it can maybe do it in a micro > benchmark but I doute that in a complex benchmark PyPy has any chance. When comparing the performance of different languages, micro benchmarks are about all we have, for better or worse. The best we can do is to run a fair number of different such benchmarks and make the comparison over them. I made my statement on the basis of such a comparison. Both LuaJIT and RPython / PyPy are very clever systems and there's a surprising amount of overlap between the way they do things. But every system has its own strengths and weaknesses, and it doesn't surprise me personally that neither one is a winner 100% of the time.