From 1b6eb2c7f0425a20f9bd823419138bf8adfa18f4 Mon Sep 17 00:00:00 2001
From: Matt Jankowski <matt@jankowski.online>
Date: Thu, 16 May 2024 05:56:48 -0400
Subject: [PATCH] Enable YJIT when available (#30310)

---
 config/initializers/enable_yjit.rb | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 config/initializers/enable_yjit.rb

diff --git a/config/initializers/enable_yjit.rb b/config/initializers/enable_yjit.rb
new file mode 100644
index 00000000000..7b1053ec114
--- /dev/null
+++ b/config/initializers/enable_yjit.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+# Automatically enable YJIT as of Ruby 3.3, as it brings very
+# sizeable performance improvements.
+
+# If you are deploying to a memory constrained environment
+# you may want to delete this file, but otherwise it's free
+# performance.
+if defined?(RubyVM::YJIT.enable)
+  Rails.application.config.after_initialize do
+    RubyVM::YJIT.enable
+  end
+end