From 98b363e4fae2200303ad37730eed2ef1b460015d Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Wed, 18 Sep 2024 16:37:55 +0200
Subject: [PATCH] Add a cache to must_be_empty_body (#9174)

---
 CHANGES/9174.misc.rst | 1 +
 aiohttp/helpers.py    | 1 +
 2 files changed, 2 insertions(+)
 create mode 100644 CHANGES/9174.misc.rst

diff --git a/CHANGES/9174.misc.rst b/CHANGES/9174.misc.rst
new file mode 100644
index 00000000000..13dc00ec1de
--- /dev/null
+++ b/CHANGES/9174.misc.rst
@@ -0,0 +1 @@
+Improved performance of web requests -- by :user:`bdraco`.
diff --git a/aiohttp/helpers.py b/aiohttp/helpers.py
index abbc628261e..bd8c11a3406 100644
--- a/aiohttp/helpers.py
+++ b/aiohttp/helpers.py
@@ -1099,6 +1099,7 @@ def parse_http_date(date_str: Optional[str]) -> Optional[datetime.datetime]:
     return None
 
 
+@functools.lru_cache
 def must_be_empty_body(method: str, code: int) -> bool:
     """Check if a request must return an empty body."""
     return (