1 files changed, 49 insertions, 0 deletions
diff --git a/benchmark/webstreams/creation.js b/benchmark/webstreams/creation.js
new file mode 100644
index 0000000000..085faba8b8
--- /dev/null
+++ b/benchmark/webstreams/creation.js
@@ -0,0 +1,49 @@
+'use strict';
+const common = require('../common.js');
+const {
+  ReadableStream,
+  TransformStream,
+  WritableStream,
+} = require('node:stream/web');
+const assert = require('assert');
+
+const bench = common.createBenchmark(main, {
+  n: [50e3],
+  kind: ['ReadableStream', 'TransformStream', 'WritableStream']
+});
+
+let rs, ws, ts;
+
+function main({ n, kind }) {
+  switch (kind) {
+    case 'ReadableStream':
+      bench.start();
+      for (let i = 0; i < n; ++i)
+        rs = new ReadableStream();
+      bench.end(n);
+
+      // Avoid V8 deadcode (elimination)
+      assert.ok(rs);
+      break;
+    case 'WritableStream':
+      bench.start();
+      for (let i = 0; i < n; ++i)
+        ws = new WritableStream();
+      bench.end(n);
+
+      // Avoid V8 deadcode (elimination)
+      assert.ok(ws);
+      break;
+    case 'TransformStream':
+      bench.start();
+      for (let i = 0; i < n; ++i)
+        ts = new TransformStream();
+      bench.end(n);
+
+      // Avoid V8 deadcode (elimination)
+      assert.ok(ts);
+      break;
+    default:
+      throw new Error('Invalid kind');
+  }
+}