Update src/benchmark_utils.py

src/benchmark_utils.py

@@ -1,5 +1,7 @@
 import pandas as pd
 import streamlit as st
+import time
+import os
 
 @st.cache_data(hash_funcs={pd.DataFrame: lambda _: None})
 def load_leaderboard(file_path="data/results_df_all_tuned.csv"):
@@ -13,8 +15,21 @@ def load_leaderboard(file_path="data/results_df_all_tuned.csv"):
         pd.DataFrame: DataFrame đã được sắp xếp, sẵn sàng để hiển thị.
     """
     try:
+        # Time the read to help diagnose cold-starts on hosted platforms
+        start = time.time()
         df = pd.read_csv(file_path)
-        
+        elapsed = time.time() - start
+
+        # Report file size and load time to the Streamlit console/UI for diagnostics
+        try:
+            fsize_mb = os.path.getsize(file_path) / (1024 * 1024)
+        except Exception:
+            fsize_mb = 0.0
+
+        # If load took longer than a short threshold, surface an informational note
+        if elapsed > 0.5:
+            st.info(f"Loaded leaderboard file '{file_path}' ({fsize_mb:.2f} MB) in {elapsed:.2f} s")
+
         SORT_COLUMN_NAME = 'RMSE (Absolute Error)'
 
         if SORT_COLUMN_NAME in df.columns:
@@ -23,7 +38,7 @@ def load_leaderboard(file_path="data/results_df_all_tuned.csv"):
             st.warning(f"Không tìm thấy cột '{SORT_COLUMN_NAME}' để sắp xếp leaderboard. "
                        f"Vui lòng kiểm tra file `src/benchmark_utils.py`.")
             df_sorted = df
-        
+
         return df_sorted
 
     except FileNotFoundError: