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+Sat Jul 26 17:22:14 2014  URABE Shyouhei  <shyouhei@ruby-lang.org>
+
+	* ext/objspace/objspace_dump.c (dump_append): avoid fflush.
+
+	  because dump_append_string_value() iterates over each chars,
+	  fflush()-ing here effectively issues system calls on every single
+	  bytes exist in a ruby process.
+
 Sat Jul 26 16:55:18 2014  Eric Wong  <e@80x24.org>
 
 	* iseq.h (struct iseq_compile_data_storage): reduce overhead