]> granicus.if.org Git - postgresql/commitdiff
Use _mm_pause() for win64 spin_delay(), per note from Tsutomu Yamada.
authorMagnus Hagander <magnus@hagander.net>
Tue, 5 Jan 2010 11:06:28 +0000 (11:06 +0000)
committerMagnus Hagander <magnus@hagander.net>
Tue, 5 Jan 2010 11:06:28 +0000 (11:06 +0000)
src/include/storage/s_lock.h

index c6edb7a5e9e1e9fb6df912f0447bdead6ca68761..4104cf6c4cac918ca779612c258ea7369b98c04d 100644 (file)
@@ -66,7 +66,7 @@
  * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- *       $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.170 2010/01/04 17:10:24 mha Exp $
+ *       $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.171 2010/01/05 11:06:28 mha Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -837,13 +837,13 @@ typedef LONG slock_t;
 #define SPIN_DELAY() spin_delay()
 
 /* If using Visual C++ on Win64, inline assembly is unavailable.
- * Use a __nop instrinsic instead of rep nop.
+ * Use a _mm_pause instrinsic instead of rep nop.
  */
 #if defined(_WIN64)
 static __forceinline void
 spin_delay(void)
 {
-       __nop();
+       _mm_pause();
 }
 #else
 static __forceinline void