diff --git a/benchmarks/vec.py b/benchmarks/vec.py
new file mode 100644
index 00000000..fbb959d4
--- /dev/null
+++ b/benchmarks/vec.py
@@ -0,0 +1,23 @@
+import sys
+
+is_cpython = hasattr(sys, 'getrefcount')
+
+if is_cpython:
+    class vec2:
+        def __init__(self, x, y):
+            self.x = x
+            self.y = y
+
+        def __add__(self, other):
+            return vec2(self.x + other.x, self.y + other.y)
+
+        def __eq__(self, other):
+            return self.x == other.x and self.y == other.y
+else:
+    from linalg import vec2
+
+x = vec2(0, 0)
+for i in range(10000000):
+    x += vec2(1, 1)
+
+assert x == vec2(5000000, 5000000)