From 04263295351f32e2b0c08d3ce79c9cd36fdf98ae Mon Sep 17 00:00:00 2001
From: Valeri Karpov <val@karpov.io>
Date: Tue, 24 Sep 2024 16:00:48 -0400
Subject: [PATCH] perf: add createDeepNestedDocArray benchmark re: #14897

---
 benchmarks/createDeepNestedDocArray.js | 37 ++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 benchmarks/createDeepNestedDocArray.js

diff --git a/benchmarks/createDeepNestedDocArray.js b/benchmarks/createDeepNestedDocArray.js
new file mode 100644
index 0000000000..0f3ac6d4a7
--- /dev/null
+++ b/benchmarks/createDeepNestedDocArray.js
@@ -0,0 +1,37 @@
+'use strict';
+
+const mongoose = require('../');
+
+run().catch(err => {
+  console.error(err);
+  process.exit(-1);
+});
+
+async function run() {
+  await mongoose.connect('mongodb://127.0.0.1:27017/mongoose_benchmark');
+
+  const levels = 12;
+
+  let schema = new mongoose.Schema({ test: { type: String, required: true } });
+  let doc = { test: 'gh-14897' };
+  for (let i = 0; i < levels; ++i) {
+    schema = new mongoose.Schema({ level: Number, subdocs: [schema] });
+    doc = { level: (levels - i), subdocs: [{ ...doc }, { ...doc }] };
+  }
+  const Test = mongoose.model('Test', schema);
+
+  if (!process.env.MONGOOSE_BENCHMARK_SKIP_SETUP) {
+    await Test.deleteMany({});
+  }
+
+  const insertStart = Date.now();
+  await Test.create(doc);
+  const insertEnd = Date.now();
+
+  const results = {
+    'create() time ms': +(insertEnd - insertStart).toFixed(2)
+  };
+
+  console.log(JSON.stringify(results, null, '  '));
+  process.exit(0);
+}
\ No newline at end of file