From 93991317c4e9d2bae2519900a960ba37f710e8d4 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Mon, 16 Mar 2026 22:08:22 -1000
Subject: [PATCH] Build benchmark library with -O2 to inline instrumentation
 hooks

---
 script/setup_codspeed_lib.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/script/setup_codspeed_lib.py b/script/setup_codspeed_lib.py
index b89f5ef780..214714d698 100755
--- a/script/setup_codspeed_lib.py
+++ b/script/setup_codspeed_lib.py
@@ -134,6 +134,9 @@ def _write_library_json(
                 f"-I{core_include}",
                 f"-I{hooks_include}",
                 # google benchmark build flags
+                # -O2 is critical: without it, instrument_hooks_start_benchmark_inline
+                # doesn't get inlined and shows up as overhead in profiles
+                "-O2",
                 "-DNDEBUG",
                 "-DHAVE_STD_REGEX",
                 "-DHAVE_STEADY_CLOCK",