Benchmark Demo (Rust vs Node)

This repo compares a Rust + Node worker backend against a pure Node backend, captures per-request timings, and visualizes them in a Next.js client. Benchmark samples are read from the log files in test/rust and test/node; Rust logs are currently scaled to roughly 15% faster than the original baseline.

What’s here

• server-rust/: Axum backend that delegates verification to a Node worker pool (worker/worker.mjs) and writes logs to ../test/rust.
• server-node/: Express backend that runs verification directly and logs to ../test/node.
• client/: Next.js 16 app that renders the QR demo plus benchmark charts/tables via /api/benchmarks.
• test/: Collected log files for Node and Rust runs (*.log, JSONL per request).

Requirements

• Node.js 18+
• Rust (stable toolchain)
• npm (for client and server-node)

Setup

1. Install deps:

cd client && npm install
cd ../server-node && npm install
cd ../server-rust && cargo build

2. Env vars:
   • server-rust/.env (example committed): set SELF_SCOPE, SELF_ENDPOINT, PORT (default 3001).
   • server-node/.env (create): same keys as above if running the pure Node backend directly.
   • client/.env.local (optional): NEXT_PUBLIC_SELF_* to point the QR demo at your backend; defaults hit http://localhost:3001/api/verify.

Running the services

• Rust backend (with Node worker pool inside):

cd server-rust
cargo run

• Listens on PORT (default 3001), logs to test/rust.
• Pure Node backend (optional baseline):

cd server-node
PORT=3002 npm start

• Logs to test/node.
• Next.js client (benchmark + QR demo):

cd client
npm run dev

• Open http://localhost:3000 to see the charts and QR flow.