From 1c9afb6082972100a3493e92db6e125a9b6b85bd Mon Sep 17 00:00:00 2001
From: Ayo <ayo@ayco.io>
Date: Tue, 2 Sep 2025 20:17:19 +0200
Subject: [PATCH] chore: update README

---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 2461225..bc03245 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,15 @@
 
 After installing `ipex-llm` which is required to use Intel GPUs (see documentation in [Links](#Links), you can should have access to `conda` and be able to `import torch` normally.
 
+Important: Set the necessary environmental variables:
+
+```bash
+unset OCL_ICD_VENDORS
+export SYCL_CACHE_PERSISTENT=1
+# [optional] The following environment variable may improve performance, but in some cases, it may also lead to performance degradation
+export SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=1
+```
+
 Links
 - [Install IPEX-LLM on Intel GPU with PyTorch 2.6](https://git.ayo.run/ayo/ipex-llm/src/branch/main/docs/mddocs/Quickstart/install_pytorch26_gpu.md)
 - [Get started with PyTorch locally](https://pytorch.org/get-started/locally/)