Upload Kmake

benchmark/webstreams/readable-async-iterator.js

@@ -0,0 +1,31 @@
+'use strict';
+const common = require('../common.js');
+const {
+  ReadableStream,
+} = require('node:stream/web');
+
+const bench = common.createBenchmark(main, {
+  n: [1e5],
+});
+
+
+async function main({ n }) {
+  const rs = new ReadableStream({
+    pull: function(controller) {
+      controller.enqueue(1);
+    },
+  });
+
+  let x = 0;
+
+  bench.start();
+  for await (const chunk of rs) {
+    x += chunk;
+    if (x > n) {
+      break;
+    }
+  }
+  // Use x to ensure V8 does not optimize away the loop as a noop.
+  console.assert(x);
+  bench.end(n);
+}