os: improve networkInterfaces() performance

PR-URL: https://github.com/nodejs/node/pull/25410
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

1 files changed, 15 insertions, 0 deletions

diff --git a/benchmark/os/networkInterfaces.js b/benchmark/os/networkInterfaces.js
new file mode 100644
index 0000000000..3fa6073ae5
--- /dev/null
+++ b/benchmark/os/networkInterfaces.js
@@ -0,0 +1,15 @@
+'use strict';
+
+const common = require('../common.js');
+const networkInterfaces = require('os').networkInterfaces;
+
+const bench = common.createBenchmark(main, {
+  n: [1e4]
+});
+
+function main({ n }) {
+  bench.start();
+  for (var i = 0; i < n; ++i)
+    networkInterfaces();
+  bench.end(n);
+}