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+Thu Nov 22 15:26:02 2012 NARUSE, Yui <naruse@ruby-lang.org>
+
+ * vm_insnhelper.h: partly revert r37631 (DTrace support).
+ "vm usage information is always collected, so uncomment the
+ functions." causes performance impact. [Bug #7370]
+ Off course this revert disables related probes.
+
Thu Nov 22 14:14:36 2012 Akinori MUSHA <knu@iDaemons.org>
* re.c (rb_memsearch_ss): Apply performance improvement to short