diff --git a/Week04/decorators_ilyas_bugra_filoglu.py b/Week04/decorators_ilyas_bugra_filoglu.py
new file mode 100644
index 00000000..74ea1a1b
--- /dev/null
+++ b/Week04/decorators_ilyas_bugra_filoglu.py
@@ -0,0 +1,34 @@
+import functools
+import time
+import tracemalloc
+
+
+def performance(func):
+    @functools.wraps(func)
+    def wrapper(*args, **kwargs):
+        is_tracing = tracemalloc.is_tracing()
+        if not is_tracing:
+            tracemalloc.start()
+        tracemalloc.reset_peak()
+
+        start_time = time.perf_counter()
+        result = func(*args, **kwargs)
+        elapsed_time = time.perf_counter() - start_time
+
+        _, peak_memory = tracemalloc.get_traced_memory()
+
+        if not is_tracing:
+            tracemalloc.stop()
+
+        performance.counter += 1
+        performance.total_time += elapsed_time
+        performance.total_mem += peak_memory
+
+        return result
+
+    return wrapper
+
+
+performance.counter = 0
+performance.total_time = 0.0
+performance.total_mem = 0