diff --git a/ChangeLog b/ChangeLog
index 0d7f92452b..0d1a4c8fd6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Jun 12 18:12:07 2011  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_vm3_clearmethodcache.rb: added.
+
 Sun Jun 12 17:40:29 2011  Koichi Sasada  <ko1@atdot.net>
 
 	* vm_method.c (rb_clear_cache*): update only vm state version.
diff --git a/benchmark/bm_vm3_clearmethodcache.rb b/benchmark/bm_vm3_clearmethodcache.rb
new file mode 100644
index 0000000000..ba45a60b3f
--- /dev/null
+++ b/benchmark/bm_vm3_clearmethodcache.rb
@@ -0,0 +1,8 @@
+i=0
+while i<200_000
+  i+=1
+
+  Class.new{
+    def m; end
+  }
+end