Update app.py

app.py

@@ -825,6 +825,7 @@ with gr.Blocks(
             )
             return "", chat_history, weaknesses, cognitive_state, new_status
 
+        # 更新学生状态
         weaknesses = update_weaknesses_from_message(message, weaknesses or [])
         cognitive_state = update_cognitive_state_from_message(message, cognitive_state)
 
@@ -833,6 +834,7 @@ with gr.Blocks(
             message, rag_chunks or []
         )
 
+        # 计时
         start_ts = time.time()
         answer, new_history = chat_with_clare(
             message=message,
@@ -844,9 +846,11 @@ with gr.Blocks(
             course_outline=course_outline,
             weaknesses=weaknesses,
             cognitive_state=cognitive_state,
-            rag_context=rag_context_text,   # 这里传文本
+            rag_context=rag_context_text,   # 这里传检索文本
         )
-        
+        end_ts = time.time()
+        latency_ms = (end_ts - start_ts) * 1000.0
+
         # === 在这里附上 References ===
         ref_text = format_references(rag_used_chunks)
         if ref_text and new_history:
@@ -857,6 +861,7 @@ with gr.Blocks(
                 answer = last_assistant  # 同步给日志
         # ==============================
 
+        # 日志
         student_id = user_id_val or "ANON"
         experiment_id = "RESP_AI_W10"
 
@@ -881,6 +886,8 @@ with gr.Blocks(
         new_status = render_session_status(mode_val, weaknesses, cognitive_state)
         return "", new_history, weaknesses, cognitive_state, new_status
 
+
+
     user_input.submit(
         respond,
         [