diff --git a/config_checking/checkers/checkpoint_checker.py b/config_checking/checkers/checkpoint_checker.py
index 30e3bf91f35a05b0c0152ac362aee8af04043f6a..be5cb6fc2109a9dd1084202349df4c9b3d212d1b 100644
--- a/config_checking/checkers/checkpoint_checker.py
+++ b/config_checking/checkers/checkpoint_checker.py
@@ -1,19 +1,19 @@
-import os
 import json
+import os
+
 import torch
-import hashlib
-import zlib
+
 from config_checking.checkers.base_checker import BaseChecker
+from config_checking.config_checker import register_checker_item
+from config_checking.utils.hash import bytes_hash
 from config_checking.utils.packing import create_file_in_zip
-from config_checking.utils.utils import load_json, compare_dict, write_list_to_file
-from config_checking.config_checker import register_checker_item 
 from config_checking.utils.utils import config_checking_print
+from config_checking.utils.utils import load_json, compare_dict, write_list_to_file
 
 
 def tensor_to_hash(tensor):
     tensor_bytes = tensor.cpu().numpy().tobytes()
-    hash_object = hashlib.sha256(tensor_bytes)
-    return hash_object.hexdigest()
+    return bytes_hash(tensor_bytes)
 
 def tensor_in_state_dict_to_hash(state_dict):
     result = {}
diff --git a/config_checking/utils/hash.py b/config_checking/utils/hash.py
index 153cd05818391f4dc56073c834b6c5f727566ae1..d5721aad21f669a99597a4a12cc67ca3d4ce18c2 100644
--- a/config_checking/utils/hash.py
+++ b/config_checking/utils/hash.py
@@ -2,7 +2,6 @@ import hashlib
 import os
 from concurrent.futures import ThreadPoolExecutor
 
-
 BLOCK_SIZE = 64 << 20  # 64MB
 MAX_THREAD_WORKERS = 16
 
@@ -41,3 +40,9 @@ def calculate_hash(file_path, max_workers=MAX_THREAD_WORKERS):
 
 def string_hash(input_str):
     return hashlib.sha256(input_str.encode('utf-8')).hexdigest()
+
+
+def bytes_hash(obj: bytes):
+    hex_dig = hashlib.sha256(obj).hexdigest()
+    short_hash = int(hex_dig, 16) % (2 ** 16)
+    return short_hash
diff --git a/config_checking/utils/packing.py b/config_checking/utils/packing.py
index 22690b229c720ddd10e387af6b36acc46089de24..621e713f9b9cb13316b5b8f36196a672b6e7534c 100644
--- a/config_checking/utils/packing.py
+++ b/config_checking/utils/packing.py
@@ -3,6 +3,8 @@ import zipfile
 import hashlib
 import multiprocessing
 
+from config_checking.utils.hash import string_hash
+
 
 proc_lock = multiprocessing.Lock()
 
@@ -80,7 +82,7 @@ class DirPacker:
         hash_file_path = f"{rel_path}.hash"
         target_file_path = os.path.join(self.result_dirname, hash_file_path)
         with open(file_path, 'rb') as f:
-            file_hash = hashlib.sha256(f.read()).hexdigest()
+            file_hash = string_hash(f.read())
 
         zip_info = zipfile.ZipInfo(target_file_path)
         self.zip_handler.writestr(zip_info, file_hash)
diff --git a/config_checking/utils/random_patch.py b/config_checking/utils/random_patch.py
index bb24919fc1b1e265c2e006139cb9fa0d8924cc7e..a6b3e4d95a277c5e6a23f57032d3ad34d638d054 100644
--- a/config_checking/utils/random_patch.py
+++ b/config_checking/utils/random_patch.py
@@ -14,7 +14,6 @@ DEFAULT_RANDOM_LOG_PATH = './random_patch.log'
 #   1、日志写入文件并发处理
 #   2、支持日志文件路径设置
 #   3、多个装饰器可改为责任链模式
-logging.basicConfig(filename=DEFAULT_RANDOM_LOG_PATH, level=logging.INFO)
 
 
 def __log_stack(func):
@@ -50,6 +49,9 @@ def __track_func(func):
 
 
 def apply_patches():
+    # init logging
+    logging.basicConfig(filename=DEFAULT_RANDOM_LOG_PATH, level=logging.INFO)
+
     # Patch random module
     random.random = __track_func(random.random)
     random.randint = __track_func(random.randint)
@@ -71,4 +73,7 @@ def apply_patches():
     torch.randn_like = __track_func(torch.randn_like)
     torch.manual_seed = __track_func(torch.manual_seed)
 
+    # Patch torch.Tensor random function
+    torch.Tensor.exponential_ = __track_func(torch.Tensor.exponential_)
+
     config_checking_print(f"random patches saved to file: {DEFAULT_RANDOM_LOG_PATH}")
diff --git a/config_checking/utils/utils.py b/config_checking/utils/utils.py
index 37705fff7a8c695d21e66b3b5db967218f902f3c..d0213c7e411338a93cf16418fa0a630f3292be0e 100644
--- a/config_checking/utils/utils.py
+++ b/config_checking/utils/utils.py
@@ -4,7 +4,8 @@ import os
 import re
 import torch
 import torch.distributed as dist
-import hashlib
+
+from config_checking.utils.hash import bytes_hash
 
 
 def load_txt(file_path):
@@ -61,9 +62,7 @@ def config_checking_print(msg):
 def tensor_to_hash(tensor):
     """Compute the hash value of a tensor"""
     tensor_bytes = tensor.clone().detach().cpu().numpy().tobytes()
-    hash_object = hashlib.sha256()
-    hash_object.update(tensor_bytes)
-    return hash_object.hexdigest()
+    return bytes_hash(tensor_bytes)
 
 
 features = {