From 9c1cdcf5419d7ce3bc55b8a03137e05d083e7fa7 Mon Sep 17 00:00:00 2001
From: ownedbywuigi <ownedbywuigi@gmail.com>
Date: Sat, 28 Mar 2026 08:31:04 +0000
Subject: [PATCH] Bigger JIT warm-up preferences

---
 js/src/jit/JitOptions.cpp   | 1 +
 modules/libpref/init/all.js | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/js/src/jit/JitOptions.cpp b/js/src/jit/JitOptions.cpp
index 78f24bb803..a8212fe452 100644
--- a/js/src/jit/JitOptions.cpp
+++ b/js/src/jit/JitOptions.cpp
@@ -281,6 +281,7 @@ void
 DefaultJitOptions::resetCompilerWarmUpThreshold()
 {
     forcedDefaultIonWarmUpThreshold.reset();
+    forcedDefaultIonSmallFunctionWarmUpThreshold.reset();
 
     // Undo eager compilation
     if (eagerCompilation) {
diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index d0fe3e38d3..908dab7bac 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -1268,8 +1268,8 @@ pref("javascript.options.ion.inlining",     true);
 // JIT warm-up thresholds (-1 keeps engine defaults).
 // Lower values can improve sustained throughput on large script bundles
 // (e.g. React/jQuery-heavy apps) at some startup compile cost.
-pref("javascript.options.baselinejit.threshold", 8);
-pref("javascript.options.ion.threshold", 80);
+pref("javascript.options.baselinejit.threshold", 6);
+pref("javascript.options.ion.threshold", 50);
 pref("javascript.options.asmjs",            true);
 pref("javascript.options.wasm",             true);
 // wasm jit crashes in 32bit builds because of 64bit casts so