adjust the min_subgraph_size for trt

tools/infer/utility.py

@@ -235,7 +235,7 @@ def create_predictor(args, mode, logger):
             config.enable_tensorrt_engine(
                 precision_mode=inference.PrecisionType.Float32,
                 max_batch_size=args.max_batch_size,
-                min_subgraph_size=3)  # skip the minmum trt subgraph
+                min_subgraph_size=10)  # skip the minmum trt subgraph
         if mode == "det" and "mobile" in model_file_path:
             min_input_shape = {
                 "x": [1, 3, 50, 50],