diff --git a/DB.py b/DB.py
index 565e407..e654217 100644
--- a/DB.py
+++ b/DB.py
@@ -1,4 +1,6 @@
 import json
+from turtledemo.penrose import start
+
 import redis
 import pymysql
 import time
@@ -445,7 +447,7 @@ class DBSA:
     push_record = staticmethod(lambda row: print("[退回Redis]", row["v_xid"]))
 
     @classmethod
-    def upsert_video(cls, data: Dict):
+    def upsert_video(cls, data):
         data = copy.deepcopy(data)
         data.setdefault("a_id", 0)
         data.setdefault("history_status", "")
@@ -476,13 +478,17 @@ class DBSA:
         with cls._lock:
             cls._buf_op.append(op_row)
             cls._buf_vid.append(vid_row)
-
-            if len(cls._buf_op) >= cls.FLUSH_EVERY_ROWS:
+            buf_len = len(cls._buf_vid)
+            print(f"DB缓冲 -> xid={data['v_xid']},    level={data['level']},    buffer={buf_len}")
+            if buf_len >= cls.FLUSH_EVERY_ROWS:
                 need_flush = True
+                flush_reason = "ROWS"
             elif time.time() - cls._last_flush >= cls.FLUSH_INTERVAL:
                 need_flush = True
+                flush_reason = "TIME"
 
         if need_flush:
+            print(f"DBSA 落 ({flush_reason}) ...")
             cls.flush()
 
     @classmethod
@@ -519,11 +525,13 @@ class DBSA:
 
         if not op_rows and not vid_rows:
             return
-
+        start = time.time()
         try:
             cls._bulk_insert(op_rows)
             cls._bulk_upsert(vid_rows)
+            elapsed = time.time() - start
+            print(f"[DBSA] 成 op={len(op_rows)}  video={len(vid_rows)}  time={elapsed:.3f}s")
         except Exception as e:
-            print("[DBSA] 批写失败:", e)
+            print(f"[DBSA] flush FAIL: {e}  op={len(op_rows)}  video={len(vid_rows)}")
             for row in vid_rows:
                 cls.push_record(row)