diff --git a/model_examples/StreamPETR/README.md b/model_examples/StreamPETR/README.md
index 320daf9450908d2819fdbbe5480d8a68ce3a6449..668c4c422b5cc549bd5b4e9c9bac03a0bb5e45f8 100644
--- a/model_examples/StreamPETR/README.md
+++ b/model_examples/StreamPETR/README.md
@@ -155,6 +155,24 @@ cd {mxDriving_root_dir}/model_examples/StreamPETR
 cp -rf test StreamPETR
 ```
 
+7. 使用TCMalloc
+```
+cd {mxDriving_root_dir}/model_examples/StreamPETR
+wget https://github.com/gperftools/gperftools/releases/download/gperftools-2.16/gperftools-2.16.tar.gz
+tar -zxvf gperftools-2.16.tar.gz
+cd gperftools-2.16
+./configure --prefix=/usr/local/lib --with-tcmalloc-pagesize=64
+make
+make install
+echo '/usr/local/lib/lib/' >> /etc/ld.so.conf
+ldconfig
+
+# 拉起训练前
+export LD_LIBRARY_PATH=/usr/local/lib/lib/:$LD_LIBRARY_PATH
+export PATH=/usr/local/lib/bin:$PATH
+export LD_PRELOAD=/usr/lib/libtcmalloc.so.4 
+```
+
 
 
 ### 准备数据集