llm统计记录模型反应时间

src/llm_models/utils_model.py

@@ -148,6 +148,7 @@ class LLMRequest:
                 model_info=model_info,
                 model_usage=usage,
                 user_id="system",
+                time_cost=time.time() - start_time,
                 request_type=self.request_type,
                 endpoint="/chat/completions",
                 time_cost=time.time() - start_time,
@@ -242,6 +243,7 @@ class LLMRequest:
     ) -> Tuple[str, Tuple[str, str, Optional[List[ToolCall]]]]:
         """执行单次请求"""
         # 模型选择和请求准备
+        start_time = time.time()
         model_info, api_provider, client = self._select_model()
         processed_prompt = self._apply_content_obfuscation(prompt, api_provider)
         
@@ -295,6 +297,7 @@ class LLMRequest:
                     llm_usage_recorder.record_usage_to_database(
                         model_info=model_info,
                         model_usage=usage,
+                        time_cost=time.time() - start_time,
                         user_id="system",
                         request_type=self.request_type,
                         endpoint="/chat/completions",
@@ -350,6 +353,7 @@ class LLMRequest:
         if usage := response.usage:
             llm_usage_recorder.record_usage_to_database(
                 model_info=model_info,
+                time_cost=time.time() - start_time,
                 model_usage=usage,
                 user_id="system",
                 request_type=self.request_type,