diff --git a/tests/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/SubTableService.java b/tests/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/SubTableService.java
index 94195c05e285ad2d0765c5c2c38231aef6ad07d4..ce7794545307b492da2bf42877da51a2ff5a8374 100644
--- a/tests/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/SubTableService.java
+++ b/tests/examples/JDBC/taosdemo/src/main/java/com/taosdata/taosdemo/service/SubTableService.java
@@ -77,8 +77,6 @@ public class SubTableService extends AbstractService {
     }
 
     public int insertMultiThreads(SuperTableMeta superTableMeta, int threadSize, long tableSize, long startTime, long gap, JdbcTaosdemoConfig config) {
-        long start = System.currentTimeMillis();
-
         List<FutureTask> taskList = new ArrayList<>();
         List<Thread> threads = IntStream.range(0, threadSize)
                 .mapToObj(i -> {
@@ -116,8 +114,6 @@ public class SubTableService extends AbstractService {
             }
         }
 
-        long end = System.currentTimeMillis();
-        logger.info("insert " + affectedRows + " rows, time cost: " + (end - start) + " ms");
         return affectedRows;
     }