diff --git a/ChangeLog b/ChangeLog
index 3c898da6c5..1ad590db3b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Jan 23 17:12:33 2015  Eric Wong  <e@80x24.org>
+
+	* benchmark/bm_marshal_dump_flo.rb: new benchmark for [Bug #10761]
+
 Thu Jan 22 18:03:19 2015  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* tool/redmine-backporter.rb (find_svn_log): use double quotes instead
diff --git a/benchmark/bm_marshal_dump_flo.rb b/benchmark/bm_marshal_dump_flo.rb
new file mode 100644
index 0000000000..9b8d0c6afb
--- /dev/null
+++ b/benchmark/bm_marshal_dump_flo.rb
@@ -0,0 +1,2 @@
+bug10761 = 10000.times.map { |x| x.to_f }
+100.times { Marshal.dump(bug10761) }