naruse	2012-11-22 15:28:17 +0900 (Thu, 22 Nov 2012)

  New Revision: 37796

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=37796

  Log:
    * 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.

  Modified files:
    trunk/ChangeLog
    trunk/vm_insnhelper.h

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 37795)
+++ ChangeLog	(revision 37796)
@@ -1,3 +1,10 @@
+Thu Nov 22 15:26:02 2012  NARUSE, Yui  <naruse@r...>
+
+	* 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@i...>
 
 	* re.c (rb_memsearch_ss): Apply performance improvement to short
Index: vm_insnhelper.h
===================================================================
--- vm_insnhelper.h	(revision 37795)
+++ vm_insnhelper.h	(revision 37796)
@@ -62,12 +62,14 @@
 extern char ruby_vm_redefined_flag[BOP_LAST_];
 extern VALUE ruby_vm_const_missing_count;
 
+#if VM_COLLECT_USAGE_DETAILS
 #define COLLECT_USAGE_INSN(insn)           vm_collect_usage_insn(insn)
 #define COLLECT_USAGE_OPERAND(insn, n, op) vm_collect_usage_operand((insn), (n), ((VALUE)(op)))
 
-#if VM_COLLECT_USAGE_DETAILS
 #define COLLECT_USAGE_REGISTER(reg, s)     vm_collect_usage_register((reg), (s))
 #else
+#define COLLECT_USAGE_INSN(insn)		/* none */
+#define COLLECT_USAGE_OPERAND(insn, n, op)	/* none */
 #define COLLECT_USAGE_REGISTER(reg, s)		/* none */
 #endif
 

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