diff --git a/Week05/decorators_omer_gezici.py b/Week05/decorators_omer_gezici.py
new file mode 100644
index 00000000..a39cbe02
--- /dev/null
+++ b/Week05/decorators_omer_gezici.py
@@ -0,0 +1,41 @@
+import time
+import tracemalloc
+from functools import wraps
+
+def performance(func):
+    """
+    A decorator that measures the performance of a function and stores statistics.
+
+      This decorator tracks the number of times the function is called, the total
+      execution time, and the peak memory consumption. These metrics are stored
+      as attributes on the wrapper function itself.
+
+      :param func: The function to be decorated and measured.
+      :type func: callable
+      :return: The wrapper function that executes the original function and records metrics.
+      :rtype: callable
+    """
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+       
+        wrapper.counter += 1
+
+        tracemalloc.start()
+        start_time = time.perf_counter()
+
+        result = func(*args, **kwargs)
+
+        end_time = time.perf_counter()
+        current_mem, peak_mem = tracemalloc.get_traced_memory()
+        tracemalloc.stop()
+
+        wrapper.total_time += (end_time - start_time)
+        wrapper.total_mem += peak_mem  
+
+        return result
+
+    wrapper.counter = 0
+    wrapper.total_time = 0.0
+    wrapper.total_mem = 0
+
+    return wrapper