feat: add main process naming

packages/cpu-prof-e2e/mocks/create-many-preoces.js

@@ -0,0 +1,32 @@
+import { spawn as _spawn } from 'node:child_process';
+import { Worker, threadId } from 'node:worker_threads';
+
+const spawn = (...args) => _spawn(...args);
+
+console.log('Main PID:', process.pid, 'TID:', threadId);
+
+const childScript =
+  "const { threadId: t } = require('worker_threads'); console.log('spawn PID:', process.pid, 'TID:', t);";
+const children = [
+  spawn(process.execPath, ['-e', childScript], { stdio: 'inherit' }),
+  spawn(process.execPath, ['-e', childScript], { stdio: 'inherit' }),
+];
+
+const workerScript =
+  "const { threadId: t } = require('worker_threads'); console.log('Worker PID:', process.pid, 'TID:', t);";
+const workers = [
+  new Worker(workerScript, { eval: true }),
+  new Worker(workerScript, { eval: true }),
+];
+
+let exited = 0;
+function checkDone() {
+  exited++;
+  if (exited === children.length + workers.length) {
+    process.exit(0);
+  }
+}
+
+[...children, ...workers].forEach((child) => {
+  child.on('exit', checkDone);
+});