bug fix: cost time should be removed from the results of the serial_s…

…earch

Signed-off-by: min.tian <[email protected]>

vectordb_bench/backend/task_runner.py

@@ -206,15 +206,16 @@ def _load_train_data(self):
         finally:
             runner = None
 
-    def _serial_search(self) -> tuple[float, float]:
+    def _serial_search(self) -> tuple[float, float, float]:
         """Performance serial tests, search the entire test data once,
         calculate the recall, serial_latency_p99
 
         Returns:
             tuple[float, float]: recall, serial_latency_p99
         """
         try:
-            return self.serial_search_runner.run()
+            results, _ = self.serial_search_runner.run()
+            return results
         except Exception as e:
             log.warning(f"search error: {str(e)}, {e}")
             self.stop()