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I am using https://luajit.org/ https://luajit.org/ in my GCC C++ project. Can I use this faster Lua JIT in my project as a replacement? And if so, how so? Th

I am using https://luajit.org/ https://luajit.org/ in my GCC C++ project. Can I use this faster Lua JIT in my project as a replacement? And if so, how so? The existing luajit doesn't do v5.1, so it would be nice to use this newer engine at the newer baseline lua version level.

tarruda 3y ago
I'm skeptical that there's any JIT for any programming language that can match the raw performance and memory efficiency of LuaJIT
- pansa2 3y ago
  I’m sure all the modern JavaScript JITs would beat LuaJIT for raw performance. JS JITs were already faster when I compared them several years ago and have only improved since - whereas LuaJIT has almost been standing still for a decade.
  - Rochus 3y ago
    > whereas LuaJIT has almost been standing still for a decade LuaJIT 2.1 improved a bit (~7%) from 2017 to 2023: http://software.rochus-keller.ch/are-we-fast-yet_LuaJIT_2017_vs_2023_results.pdf http://software.rochus-keller.ch/are-we-fast-yet_LuaJIT_2017...
- Rochus 3y ago
  The Mono VM is about twice as fast, V8 is even a bit faster: https://github.com/rochus-keller/Oberon/blob/master/testcases/Are-we-fast-yet/Are-we-fast-yet_results_linux.pdf https://github.com/rochus-keller/Oberon/blob/master/testcase...
saagarjha 3y ago
This is a baseline JIT, so it will be slower than LuaJIT (which has a sophisticated optimizer).
fullstop 3y ago
> The existing luajit doesn't do v5.1, so it would be nice to use this newer engine at the newer baseline lua version level. LuaJIT only does v5.1, but does have some non-breaking features from v5.2 and a few optional 5.2 features which could break 5.1 compatibility.