Add stats config for load tests (#11868)

test/.stats-app/stats-config.js

@@ -142,6 +142,15 @@ module.exports = {
         'http://localhost:$PORT/link',
         'http://localhost:$PORT/withRouter',
       ],
+      pagesToBench: [
+        'http://localhost:$PORT/',
+        'http://localhost:$PORT/error-in-render',
+      ],
+      benchOptions: {
+        reqTimeout: 60,
+        concurrency: 50,
+        numRequests: 2500,
+      },
     },
     {
       title: 'Serverless Mode',