benchmark: add startup benchmark for ESM entrypoint

joyeecheung · aduh95 · commit ab4375e141ed · 2026-02-22T01:07:45.000+01:00
PR-URL: #61769 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com> Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com> Reviewed-By: Chengzhong Wu <legendecas@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Jacob Smith <jacob@frende.me>
diff --git a/benchmark/fixtures/empty.mjs b/benchmark/fixtures/empty.mjs
diff --git a/benchmark/fixtures/import-builtins.mjs b/benchmark/fixtures/import-builtins.mjs
@@ -0,0 +1,34 @@
+import 'node:async_hooks';
+import 'node:assert';
+import 'node:buffer';
+import 'node:child_process';
+import 'node:console';
+import 'node:constants';
+import 'node:crypto';
+import 'node:cluster';
+import 'node:dgram';
+import 'node:dns';
+import 'node:domain';
+import 'node:events';
+import 'node:fs';
+import 'node:http';
+import 'node:http2';
+import 'node:https';
+import 'node:module';
+import 'node:net';
+import 'node:os';
+import 'node:path';
+import 'node:perf_hooks';
+import 'node:process';
+import 'node:querystring';
+import 'node:readline';
+import 'node:repl';
+import 'node:stream';
+import 'node:string_decoder';
+import 'node:timers';
+import 'node:tls';
+import 'node:tty';
+import 'node:url';
+import 'node:util';
+import 'node:vm';
+import 'node:zlib';
diff --git a/benchmark/misc/startup-core.js b/benchmark/misc/startup-core.js
@@ -7,9 +7,11 @@ let Worker;  // Lazy loaded in main
 
 const bench = common.createBenchmark(main, {
   script: [
-    'benchmark/fixtures/require-builtins',
-    'test/fixtures/semicolon',
-    'test/fixtures/snapshot/typescript',
+    'benchmark/fixtures/empty.mjs',
+    'benchmark/fixtures/import-builtins.mjs',
+    'benchmark/fixtures/require-builtins.js',
+    'test/fixtures/semicolon.js',
+    'test/fixtures/snapshot/typescript.js',
   ],
   mode: ['process', 'worker'],
   n: [30],
@@ -58,7 +60,7 @@ function spawnWorker(script, bench, state) {
 }
 
 function main({ n, script, mode }) {
-  script = path.resolve(__dirname, '../../', `${script}.js`);
+  script = path.resolve(__dirname, '../../', `${script}`);
   const warmup = 3;
   const state = { n, finished: -warmup };
   if (mode === 'worker') {
