diff --git a/doc/paddlehelp.jpg b/doc/paddlehelp.jpg
new file mode 100644
index 00000000..2b4aa3c8
Binary files /dev/null and b/doc/paddlehelp.jpg differ
diff --git a/tools/infer/utility.py b/tools/infer/utility.py
index b3d15f01..2859c97e 100755
--- a/tools/infer/utility.py
+++ b/tools/infer/utility.py
@@ -88,10 +88,10 @@ def create_predictor(args, mode):
 
     if args.use_gpu:
         config.enable_use_gpu(args.gpu_mem, 0)
-        config.enable_memory_optim()
     else:
         config.disable_gpu()
 
+    config.enable_memory_optim()
     config.disable_glog_info()
 
     # use zero copy