raylib-lua is slow on Apple M1

[GarrettAlbright]

I'm on a MacBook Air (M1, 2020) running macOS 12.4.

After cloning the repo and subrepos and running make, trying to run any of the raylua_* binaries results in:

zsh: killed     ./raylua_e

(…or raylua_s or raylua_r) and an exit code of 137.

Searching for "zsh: killed" seems to mostly result in pages relating to running Homebrew or tools installed with it on M1 Macs. I don't think this is Homebrew-related since I'm a boomer who uses MacPorts (if it ain't broke…). Nonetheless I wonder if the issue might still be related to the relatively new M1 hardware and I wonder if anyone else is seeing this issue happen on M1 Macs, or alternatley is running it successfully.

Unfortunately I no longer have easy access to Intel-based Mac hardware to see if the issue is happening there too.

[TSnake41]

Exit code 137 is out of memory error, not sure why/where it happens.

I don't have a Mac, so it's tricky to test, I should try with a vm.

[atahrijouti]

👋🏼 @GarrettAlbright
Have you find out a way to work with it?

[GarrettAlbright]

I'm afraid I haven't. I haven't had another look at this since I posted this issue.

[joseph-montanez]

I've submitted a pull request for the issue, but one thing I am noticing is performance is not great. Here is a benchmark I've run 100,000 bunnies, 144 FPS max.

M1 Mac Mini - 16GB RAM - macOS Ventura 13.4.1

Language	Extension	FPS	Memory	CPU	GPU
C (CMake Release)	Native	85 FPS	47 MB	64%	90%
Zig 0.11.0 (ReleaseFast) (Arena)	raylib.zig	85 FPS	54 MB	60%	90%
Rust (Release)	bitten2up/raylib-rs	85 FPS	48 MB	67%	90%
Go 2.20 (Release)	gen2brain/raylib-go	85 FPS	55 MB	73%	90%
Nim 2.0 (Release)	planetis-m/naylib	83 FPS	48 MB	70%	90%
C# 11 .Net 7	raylib-cs	85 FPS	68 MB	75%	90%
NodeJS 20	node-raylib	44 FPS	134 MB	100%	80%
PHP 8.2 (Jit)	raylib-php	41 FPS	257 MB	100%	60%
PHP 8.2	raylib-php	27 FPS	242 MB	100%	57%
Python 3.11	raylib-python-cffi	10 FPS	100 MB	100%	35%
Lua (LuaJIT 2.1.0-beta3) (-O2)	TSnake41/raylib-lua	5 FPS	113 MB	100%	31%

I am not sure why LuaJIT is having these performance issues as I ran raylib_e with a zipfile to make a binary. The branch checkout is from 6 months ago so its a recent code base for LuaJIT. Even ran with MACOSX_DEPLOYMENT_TARGET=13.4 make to try anything for additional performance. Also used -arch arm64 -O3 -flto but nothing really improved performance.

[TSnake41]

I think this issue is due to LuaJIT on Mac OS not using JIT for some reason.
What gives jit.status() (may require jit = require "jit") on Mac OS X with M1/M2 ?

[joseph-montanez]

jit = require "jit"

print("jit status", jit.status())

 ./raylua_s examples/textures_bunnymark.lua           
RAYLUA: Raylua boot script
RAYLUA: Lua Version: Lua 5.1
RAYLUA: Lua JIT: LuaJIT 2.1.0-beta3
RAYLUA: Loading FFI binding entries.
RAYLUA: Loaded 846 FFI entries.
jit status	true	fold	cse	dce	fwd	dse	narrow	loop	abc	sink	fuse

[Sleepful]

I found this discussion, which also has problems on arm64 with LuaJIT:
https://love2d.org/forums/viewtopic.php?t=94760
LuaJIT issue:
LuaJIT/LuaJIT#285