Node.js v11.13.0

1 files changed, 22 insertions, 0 deletions

diff --git a/deps/node/benchmark/events/ee-listeners-many.js b/deps/node/benchmark/events/ee-listeners-many.js
new file mode 100644
index 00000000..7f9099c4
--- /dev/null
+++ b/deps/node/benchmark/events/ee-listeners-many.js
@@ -0,0 +1,22 @@
+'use strict';
+const common = require('../common.js');
+const EventEmitter = require('events').EventEmitter;
+
+const bench = common.createBenchmark(main, { n: [5e6] });
+
+function main({ n }) {
+  const ee = new EventEmitter();
+  ee.setMaxListeners(101);
+
+  for (var k = 0; k < 50; k += 1) {
+    ee.on('dummy0', () => {});
+    ee.on('dummy1', () => {});
+  }
+
+  bench.start();
+  for (var i = 0; i < n; i += 1) {
+    const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1';
+    ee.listeners(dummy);
+  }
+  bench.end(n);
+}