Bun dont work with cluster

[imezx]

What version of Bun is running?

1.1.32-canary.21+ae8de1926

What platform is your computer?

Microsoft Windows NT 10.0.26100.0 x64

What steps can reproduce the bug?

(app.js)

import { Hono } from 'hono';
import cluster from 'node:cluster';
import os from 'node:os';
import dotenv from 'dotenv';
dotenv.config();

const numCPUs = os.cpus().length;
const MaxCPUs = 8;
const port = process.env.PORT;

if (cluster.isPrimary) {
    console.log(`Primary ${process.pid} is running`);
    for (let i = 0; i < Math.min(Math.max(numCPUs, 1), MaxCPUs); i++) cluster.fork();
    cluster.on('exit', (_) => cluster.fork());
    process.on('SIGINT', () => {
        process.exit(0);
    });
} else if (cluster.isWorker) {
    const app = new Hono();
    console.log(cluster.worker.id, process.pid);
    app.get('/id', (c) => {
        // console.log(cluster.worker.id);
        return c.text(cluster.worker.id);
    });
    Bun.serve({ fetch: app.fetch, port, reusePort: true, development: false });
    console.log(`Server running on http://127.0.0.1:${port}`);
}

(index.js)

Bun.spawn(["bun", "./app.js"], {
    stdio: ["inherit", "inherit", "inherit"],
    env: {
        ...process.env
    },
});

run: bun index.js

What is the expected behavior?

i never had this worked since v1.1.2 before (i start using bun at v1.1.2) but it works if run with nodejs.

What do you see instead?

this made bun is not faster than nodejs (bun is slower 1-5%) due the clusters dont work

Additional information

No response

[imezx]

i have also tried using native bun serve (from: here) but still the same thing

[imezx]

my old issue

[imezx]

(another test)