diff --git a/src/compiler_llvm/compilation_unit.cc b/src/compiler_llvm/compilation_unit.cc
index e7f77e2..1c47392 100644
--- a/src/compiler_llvm/compilation_unit.cc
+++ b/src/compiler_llvm/compilation_unit.cc
@@ -347,8 +347,8 @@
 
   // Add optimization pass
   llvm::PassManagerBuilder pm_builder;
-  pm_builder.Inliner = llvm::createFunctionInliningPass();
-  //pm_builder.Inliner = llvm::createAlwaysInlinerPass();
+  //pm_builder.Inliner = llvm::createFunctionInliningPass();
+  pm_builder.Inliner = llvm::createAlwaysInlinerPass();
   //pm_builder.Inliner = llvm::createPartialInliningPass();
   pm_builder.OptLevel = 3;
   pm_builder.DisableSimplifyLibCalls = 1;
diff --git a/src/compiler_llvm/compilation_unit.h b/src/compiler_llvm/compilation_unit.h
index fb5f4e4..a464df0 100644
--- a/src/compiler_llvm/compilation_unit.h
+++ b/src/compiler_llvm/compilation_unit.h
@@ -98,7 +98,7 @@
 
   bool IsMaterializeThresholdReached() const {
     MutexLock GUARD(cunit_lock_);
-    return (mem_usage_ > 10000000u); // (threshold: 10 MB)
+    return (mem_usage_ > 5000000u); // (threshold: 5 MB)
   }
 
   void AddMemUsageApproximation(size_t usage) {