Add proto_splitter info to tensorflow.org guide.

PiperOrigin-RevId: 555249702

Author: BlaziusMaximus

site/en/guide/saved_model.ipynb

@@ -723,6 +723,36 @@
         "imported_with_output_name.signatures['serving_default'].structured_outputs"
       ]
     },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "Q4bCK55x1IBW"
+      },
+      "source": [
+        "## Proto-splitting\n",
+        "\n",
+        "Due to limits of the protobuf implementation, proto sizes cannot exceed 2GB. This can lead to the following errors when attempting to save very large models:\n",
+        "\n",
+        "```\n",
+        "ValueError: Message tensorflow.SavedModel exceeds maximum protobuf size of 2GB: ...\n",
+        "```\n",
+        "\n",
+        "```\n",
+        "google.protobuf.message.DecodeError: Error parsing message as the message exceeded the protobuf limit with type 'tensorflow.GraphDef'\n",
+        "```\n",
+        "\n",
+        "If you wish to save models that exceed the 2GB limit, then you'll need to save using the new proto-splitting option:\n",
+        "\n",
+        "```python\n",
+        "tf.saved_model.save(\n",
+        "  ...,\n",
+        "  options=tf.saved_model.SaveOptions(experimental_image_format=True)\n",
+        ")\n",
+        "```\n",
+        "\n",
+        "More information can be found in the [Proto Splitter / Merger Library guide](https://github.com/tensorflow/tensorflow/blob/master/tensorflow/tools/proto_splitter/in-depth-guide.md)."
+      ]
+    },
     {
       "cell_type": "markdown",
       "metadata": {
@@ -995,6 +1025,7 @@
   "metadata": {
     "colab": {
       "name": "saved_model.ipynb",
+      "provenance": [],
       "toc_visible": true
     },
     "kernelspec": {