diff --git a/nbs/load_tests.ipynb b/nbs/load_tests.ipynb
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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "0446d834",
+   "metadata": {},
+   "source": [
+    "# Load tests\n",
+    "\n",
+    "> Performance testing for apswutils using different configuration"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "03c8fc1f",
+   "metadata": {},
+   "source": [
+    "Plan: \n",
+    "\n",
+    "1. Create a single db load test that uses threading to perform a high volume of writes and some reads to replicate behavior under load by many users. Lock errors will be append to a simple text file called 'lock-errors.txt'\n",
+    "2. Extract that from the cell and feed that into timeit and/or cProfile in another cell"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c28db89e",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import threading\n",
+    "import random\n",
+    "from string import ascii_letters\n",
+    "from apswutils.db import Database, Table\n",
+    "import timeit\n",
+    "import inspect"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "686289a0",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def get_table(reset=False):\n",
+    "    db = Database(\"load.db\")\n",
+    "    if reset:\n",
+    "        for t in db.tables: t.drop()\n",
+    "    users = Table(db, 'Users')\n",
+    "    users.create(columns=dict(id=int, name=str), transform=True, pk='id')\n",
+    "    return users"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "a6eaa87e",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "<Table Users (id, name)>"
+      ]
+     },
+     "execution_count": null,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "users = get_table(reset=False)\n",
+    "users"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f1476bfb",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'SCyFLvRxqC'"
+      ]
+     },
+     "execution_count": null,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "def get_random_name(length=10):\n",
+    "    return ''.join(random.choice(ascii_letters) for _ in range(length))\n",
+    "get_random_name()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "117629a1",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def get_user(id): return users.get(id)\n",
+    "def set_user(id,name): return users.insert({'name':name},pk='id')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1976b770",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'id': 1, 'name': 'BqjlFTjvLU', 'type': 'write'}"
+      ]
+     },
+     "execution_count": null,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "def db_worker():\n",
+    "    record = set_user(random.randint(1,1000), get_random_name()).result[0]\n",
+    "    record['type'] = 'write'\n",
+    "    return record\n",
+    "db_worker()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "4ff89700",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def db_worker_batch(size=100):\n",
+    "    for i in range(size): db_worker()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "d36eb83a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def run_concurrent_workers(n_threads=10):\n",
+    "    print(users.count)\n",
+    "    threads = []\n",
+    "    for _ in range(n_threads):\n",
+    "        t = threading.Thread(target=db_worker_batch)\n",
+    "        threads.append(t)\n",
+    "        t.start()\n",
+    "    \n",
+    "    for t in threads:\n",
+    "        t.join()\n",
+    "    print(users.count)\n",
+    "    print('-------')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "86ab4bd7",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "555201\n",
+      "555301\n",
+      "-------\n"
+     ]
+    }
+   ],
+   "source": [
+    "run_concurrent_workers(1)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "8d418750",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "setup = \"\"\"\n",
+    "import threading\n",
+    "import random\n",
+    "from string import ascii_letters\n",
+    "from apswutils.db import Database, Table\n",
+    "\"\"\"\n",
+    "setup += f'\\n{inspect.getsource(get_table)}'\n",
+    "setup += f'\\nusers = get_table()'\n",
+    "setup += f'\\n{inspect.getsource(get_random_name)}'\n",
+    "setup += f'\\n{inspect.getsource(get_user)}'\n",
+    "setup += f'\\n{inspect.getsource(set_user)}'\n",
+    "setup += f'\\n{inspect.getsource(db_worker)}'\n",
+    "setup += f'\\n{inspect.getsource(db_worker_batch)}'\n",
+    "setup += f'\\n{inspect.getsource(run_concurrent_workers)}'\n",
+    "\n",
+    "# print(setup)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "60d38c66",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "test_code = \"\"\"run_concurrent_workers(1000)\"\"\""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5b656178",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "555301\n",
+      "655301\n",
+      "-------\n",
+      "655301\n",
+      "755301\n",
+      "-------\n",
+      "755301\n",
+      "855301\n",
+      "-------\n",
+      "855301\n",
+      "955301\n",
+      "-------\n",
+      "955301\n",
+      "1055301\n",
+      "-------\n",
+      "[291.8241256250185, 300.83988204202615, 285.32696783400024, 269.2562499170017, 268.16414191701915]\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(timeit.repeat(stmt=test_code, setup=setup, number=1))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ccd6594e",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "python3",
+   "language": "python",
+   "name": "python3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}