diff --git a/tests/benchmark/milvus_benchmark/metrics/models/metric.py b/tests/benchmark/milvus_benchmark/metrics/models/metric.py
index c051cc1f96..c55b3f1548 100644
--- a/tests/benchmark/milvus_benchmark/metrics/models/metric.py
+++ b/tests/benchmark/milvus_benchmark/metrics/models/metric.py
@@ -51,6 +51,7 @@ class Metric(object):
         self.status = status
 
     def update_result(self, result):
+        # Customized test result update, different test types have different results
         self.metrics["value"].update(result)
 
     def update_message(self, err_message):