diff --git a/benchmarks/ConfigSchema.php b/benchmarks/ConfigSchema.php
new file mode 100644
index 00000000..a8c7cef7
--- /dev/null
+++ b/benchmarks/ConfigSchema.php
@@ -0,0 +1,10 @@
+<?php
+
+require_once '../library/HTMLPurifier.path.php';
+require_once 'HTMLPurifier.includes.php';
+
+$begin = xdebug_memory_usage();
+
+$schema = HTMLPurifier_ConfigSchema::makeFromSerial();
+
+echo xdebug_memory_usage() - $begin;