diff --git a/tests/pytest/manualTest/manual_alter_block.py b/tests/pytest/manualTest/manual_alter_block.py
index 0db74e160a0e7f377ef92893c025bdc17f817da7..ccd98b1421400a765d85a35cf3a0b13b15f35f8e 100644
--- a/tests/pytest/manualTest/manual_alter_block.py
+++ b/tests/pytest/manualTest/manual_alter_block.py
@@ -17,7 +17,8 @@ from util.cases import *
 from util.sql import *
 from util.dnodes import tdDnodes
 
-
+##TODO: auto test version is currently unsupported, need to come up with 
+#       an auto test version in the future
 class TDTestCase:
     def init(self, conn, logSql):
         tdLog.debug("start to execute %s" % __file__)
@@ -48,27 +49,33 @@ class TDTestCase:
             tdLog.info("taosd found in %s" % buildPath)
         binPath = buildPath+ "/build/bin/"  
 
+        #alter cache block to 3, then check alter
         tdSql.execute('alter database db blocks 3')
         tdSql.query('show databases')
         tdSql.checkData(0,9,3)
 
-        os.system("%staosdemo -f tools/taosdemoAllTest/insert_5Mrows_noTB.json" % binPath) 
-
+        #run taosdemo to occupy all cache, need to manually check memory consumption
+        os.system("%staosdemo -f tools/taosdemoAllTest/manual_block1_comp.json" % binPath) 
         input("please check memory usage for taosd. After checking, press enter")
 
+        #alter cache block to 8, then check alter
         tdSql.execute('alter database db blocks 8')
         tdSql.query('show databases')
         tdSql.checkData(0,9,8)
-        tdDnodes.stop(1)
-        tdDnodes.start(1)
-
-        os.system("%staosdemo -f tools/taosdemoAllTest/insert_5Mrows_hasTB.json" % binPath) 
 
+        #run taosdemo to occupy all cache, need to manually check memory consumption
+        os.system("%staosdemo -f tools/taosdemoAllTest/manual_block2.json" % binPath) 
         input("please check memory usage for taosd. After checking, press enter")
 
+        ##expected result the peak memory consumption should increase by around 80MB = 5 blocks of cache
+
+        ##test results
+        #2021/06/02 before:2621700K     after: 2703640K memory usage increased by 80MB = 5 block
+        #           confirm with the change in block.       Baosheng Chang
+
     def stop(self):
         tdSql.close()
-        tdLog.success("%s successfully executed" % __file__)
+        tdLog.debug("%s alter block manual check finish" % __file__)
 
 
 tdCases.addWindows(__file__, TDTestCase())
diff --git a/tests/pytest/tools/taosdemoAllTest/insert_5Mrows_noTB.json b/tests/pytest/tools/taosdemoAllTest/manual_block1_comp.json
similarity index 84%
rename from tests/pytest/tools/taosdemoAllTest/insert_5Mrows_noTB.json
rename to tests/pytest/tools/taosdemoAllTest/manual_block1_comp.json
index 8583b9a897fbddbcbc88f31db52f8b9e80f37ea1..3ced8272b290bfd8bb98c9a78f3892c1b298a45e 100644
--- a/tests/pytest/tools/taosdemoAllTest/insert_5Mrows_noTB.json
+++ b/tests/pytest/tools/taosdemoAllTest/manual_block1_comp.json
@@ -22,7 +22,7 @@
             "blocks": 3,
             "precision": "ms",
             "keep": 3650,
-            "minRows": 100,
+            "minRows": 1000,
             "maxRows": 4096,
             "comp":2,
             "walLevel":1,
@@ -40,7 +40,7 @@
             "batch_create_tbl_num": 20,   
             "data_source": "rand",       
             "insert_mode": "taosc",      
-            "insert_rows": 100000,       
+            "insert_rows": 10000,       
             "childtable_limit": 10,      
             "childtable_offset":100,     
             "interlace_rows": 0,         
@@ -53,8 +53,8 @@
             "sample_format": "csv",       
             "sample_file": "./sample.csv",   
             "tags_file": "",              
-            "columns": [{"type": "INT"}],
-            "tags": [{"type": "TINYINT", "count":2}]
+            "columns": [{"type": "INT"}, {"type": "DOUBLE", "count":10}, {"type": "BINARY", "len": 16, "count":3}, {"type": "BINARY", "len": 32, "count":6}],
+            "tags": [{"type": "TINYINT", "count":2}, {"type": "BINARY", "len": 16, "count":5}]
         }]
     }]
 }
\ No newline at end of file
diff --git a/tests/pytest/tools/taosdemoAllTest/insert_5Mrows_hasTB.json b/tests/pytest/tools/taosdemoAllTest/manual_block2.json
similarity index 98%
rename from tests/pytest/tools/taosdemoAllTest/insert_5Mrows_hasTB.json
rename to tests/pytest/tools/taosdemoAllTest/manual_block2.json
index 2731e0505ce730f50784fe780f816609f52479ea..434159159b4dfe942af1c334fd9520d81214e6cb 100644
--- a/tests/pytest/tools/taosdemoAllTest/insert_5Mrows_hasTB.json
+++ b/tests/pytest/tools/taosdemoAllTest/manual_block2.json
@@ -19,7 +19,7 @@
             "replica": 1,
             "days": 10,
             "cache": 16,
-            "blocks": 3,
+            "blocks": 8,
             "precision": "ms",
             "keep": 3650,
             "minRows": 100,