diff --git a/build/config/allocator.gni b/build/config/allocator.gni
index 8954e45..d8df8fd 100644
--- a/build/config/allocator.gni
+++ b/build/config/allocator.gni
@@ -26,10 +26,12 @@ if ((is_linux || is_android || is_mac ||
 
 declare_args() {
   # Memory allocator to use. Set to "none" to use default allocator.
-  use_allocator = _default_allocator
+  # Yue: Turn off allocator by default.
+  use_allocator = "none"
 
   # Causes all the allocations to be routed via allocator_shim.cc.
-  use_allocator_shim = _default_use_allocator_shim
+  # Yue: Turn off allocator by default.
+  use_allocator_shim = false
 
   # Partition alloc is included by default except iOS.
   use_partition_alloc = !is_ios
diff --git a/scripts/bootstrap.js b/scripts/bootstrap.js
index 45fff78..366bd2e 100755
--- a/scripts/bootstrap.js
+++ b/scripts/bootstrap.js
@@ -47,6 +47,7 @@ if (targetOs == 'linux') {
   debugConfig.push('enable_iterator_debugging=false')
   // Use prebuilt clang binaries.
   commonConfig.push('is_clang=true')
+  commonConfig.push('use_allocator="tcmalloc"')
   // Link with libc++ statically.
   commonConfig.push('use_custom_libcxx=true')
   releaseConfig.push('libcpp_is_static=true')