diff --git a/compiler/utils/arm/assembler_arm_vixl.h b/compiler/utils/arm/assembler_arm_vixl.h
index 3cf6a2e..322f6c4 100644
--- a/compiler/utils/arm/assembler_arm_vixl.h
+++ b/compiler/utils/arm/assembler_arm_vixl.h
@@ -39,6 +39,13 @@
 
 class ArmVIXLMacroAssembler FINAL : public vixl32::MacroAssembler {
  public:
+  // Most methods fit in a 1KB code buffer, which results in more optimal alloc/realloc and
+  // fewer system calls than a larger default capacity.
+  static constexpr size_t kDefaultCodeBufferCapacity = 1 * KB;
+
+  ArmVIXLMacroAssembler()
+      : vixl32::MacroAssembler(ArmVIXLMacroAssembler::kDefaultCodeBufferCapacity) {}
+
   // The following interfaces can generate CMP+Bcc or Cbz/Cbnz.
   // CMP+Bcc are generated by default.
   // If a hint is given (is_far_target = false) and rn and label can all fit into Cbz/Cbnz,