Update predict_det.py

tools/infer/predict_det.py

@@ -101,10 +101,11 @@ class TextDetector(object):
         self.predictor, self.input_tensor, self.output_tensors, self.config = utility.create_predictor(
             args, 'det', logger)
 
+        if args.benchmark:
             pid = os.getpid()
             self.autolog = auto_log.AutoLogger(
                 model_name="det",
-            model_precision="fp32",
+                model_precision=args.precision,
                 batch_size=1,
                 data_shape="dynamic",
                 save_path="./output/auto_log.lpg",