diff --git a/tests/benchmark/milvus_benchmark/update.py b/tests/benchmark/milvus_benchmark/update.py
index d0a46cef0a..611a42fbc4 100644
--- a/tests/benchmark/milvus_benchmark/update.py
+++ b/tests/benchmark/milvus_benchmark/update.py
@@ -10,100 +10,6 @@ import requests
 import json
 
 
-def get_token(url):
-    """ get the request token and return the value """
-    rep = requests.get(url)
-    data = json.loads(rep.text)
-    if 'token' in data:
-        token = data['token']
-    else:
-        token = ''
-        print("Can not get token.")
-    return token
-
-
-def get_tags(url, token):
-    headers = {'Content-type': "application/json",
-               "charset": "UTF-8",
-               "Accept": "application/vnd.docker.distribution.manifest.v2+json",
-               "Authorization": "Bearer %s" % token}
-    try:
-        rep = requests.get(url, headers=headers)
-        data = json.loads(rep.text)
-
-        tags = []
-        if 'tags' in data:
-            tags = data["tags"]
-        else:
-            print("Can not get the tag list")
-        return tags
-    except:
-        print("Can not get the tag list")
-        return []
-
-
-def get_master_tags(tags_list):
-    _list = []
-    tag_name = "master"
-
-    if not isinstance(tags_list, list):
-        print("tags_list is not a list.")
-        return _list
-
-    for tag in tags_list:
-        if tag_name in tag and tag != tag_name + "-latest":
-            _list.append(tag)
-    return _list
-
-
-def get_config_digest(url, token):
-    headers = {'Content-type': "application/json",
-               "charset": "UTF-8",
-               "Accept": "application/vnd.docker.distribution.manifest.v2+json",
-               "Authorization": "Bearer %s" % token}
-    try:
-        rep = requests.get(url, headers=headers)
-        data = json.loads(rep.text)
-
-        digest = ''
-        if 'config' in data and 'digest' in data["config"]:
-            digest = data["config"]["digest"]
-        else:
-            print("Can not get the digest")
-        return digest
-    except:
-        print("Can not get the digest")
-        return ""
-
-
-def get_latest_tag(limit=200):
-    """ get the latest tag of master """
-
-    auth_url = ""
-    tags_url = ""
-    tag_url = ""
-    master_latest = "master-latest"
-
-    master_latest_digest = get_config_digest(tag_url + master_latest, get_token(auth_url))
-    tags = get_tags(tags_url, get_token(auth_url))
-    tag_list = get_master_tags(tags)
-
-    latest_tag = ""
-    for i in range(1, len(tag_list) + 1):
-        tag_name = str(tag_list[-i])
-        tag_digest = get_config_digest(tag_url + tag_name, get_token(auth_url))
-        if tag_digest == master_latest_digest:
-            latest_tag = tag_name
-            break
-        if i > limit:
-            break
-
-    if latest_tag == "":
-        raise print("Can't find the latest image name")
-    print("The image name used is %s" % str(latest_tag))
-    return latest_tag
-
-
 def get_image_tag():
     url = ""
     headers = {"accept": "application/json"}