diff --git a/Week04/decorators_khaled_alismail.py b/Week04/decorators_khaled_alismail.py
new file mode 100644
index 00000000..a2c0c91e
--- /dev/null
+++ b/Week04/decorators_khaled_alismail.py
@@ -0,0 +1,26 @@
+import time
+import tracemalloc
+from functools import update_wrapper
+
+
+class performance:
+    def __init__(self, func):
+        self.func = func
+        self.counter = 0
+        self.total_time = 0.0
+        self.total_mem = 0
+        update_wrapper(self, func)
+
+    def __call__(self, *args, **kwargs):
+        tracemalloc.start()
+        start_time = time.perf_counter()
+
+        try:
+            return self.func(*args, **kwargs)
+        finally:
+            _, peak_memory = tracemalloc.get_traced_memory()
+            tracemalloc.stop()
+
+            self.counter += 1
+            self.total_time += time.perf_counter() - start_time
+            self.total_mem += peak_memory