Add performance tracking decorator

Week04/decorators_mehmet_balci.py

@@ -0,0 +1,37 @@
+import time
+import tracemalloc
+
+def performance(func):
+    # Initialize static variables only once (if they don't exist)
+    if not hasattr(performance, "counter"):
+        performance.counter = 0          # Number of times the function is called
+        performance.total_time = 0.0     # Total execution time
+        performance.total_mem = 0        # Total peak memory usage
+
+    def wrapper(*args, **kwargs):
+        # Start high-resolution timer
+        start = time.perf_counter()
+
+        # Start tracking memory allocations
+        tracemalloc.start()
+
+        try:
+            # Execute the original function
+            return func(*args, **kwargs)
+        finally:
+            # Calculate elapsed time
+            elapsed = time.perf_counter() - start
+
+            # Get memory usage (peak = maximum memory used)
+            _, peak = tracemalloc.get_traced_memory()
+
+            # Stop memory tracking
+            tracemalloc.stop()
+
+            # Update statistics
+            performance.counter += 1
+            performance.total_time += elapsed
+            performance.total_mem += peak
+
+    # Return the wrapper function instead of the original
+    return wrapper