bun-c-luajit-bench

bun ffi benchmark (vs c, luajit, node, python)

based on https://bun.sh/blog/compile-and-run-c-in-js

Usage

Bun

$ bun install
$ bun run bench.js

Node.js

$ yarn install
$ yarn global add node-gyp
$ node-gyp rebuild
$ node bench_napi.cjs

C

• note: using google benchmark library. below is example for macos.

$ brew install google-benchmark
$ clang++ ./bench.cpp -L/opt/homebrew/lib -l benchmark -O3 -I/opt/homebrew/include -o bench
$ ./bench

Luajit

$ clang -shared -fPIC -O3 -o libmyRandom.dylib myRandom.c
# (.dylib should be .so on linux)
$ luajit bench.lua

Python

$ clang -shared -fPIC -O3 -o libmyRandom.dylib myRandom.c
# (.dylib should be .so on linux)
$ python bench.py

Result

Tested on M1 Macbook Air.

• C: 7.05 ns /iter
• bun: 12.54 ns /iter
• node: 11.47 ns /iter
• luajit: 16.84 ns /iter
• python: 135.26 ns /iter

(Used environment)

• clang: 19.1.2
• bun: 1.1.34
• node: v22.9.0
• node-gyp: v10.2.0
• LuaJIT: 2.1.1710088188
• Python: 3.11.5