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| author | Magnus Hagander <magnus@hagander.net> | 2010-01-05 11:06:28 +0000 |
|---|---|---|
| committer | Magnus Hagander <magnus@hagander.net> | 2010-01-05 11:06:28 +0000 |
| commit | ce92f8b4634b128c4e1090d26617a17fb73ae3d5 (patch) | |
| tree | 9df0374a4cc36194670fa9925791055a4e41411e | |
| parent | 5219f803123cda0e94f07827236ffe5424c2d016 (diff) | |
| download | postgresql-ce92f8b4634b128c4e1090d26617a17fb73ae3d5.tar.gz postgresql-ce92f8b4634b128c4e1090d26617a17fb73ae3d5.zip | |
Use _mm_pause() for win64 spin_delay(), per note from Tsutomu Yamada.
| -rw-r--r-- | src/include/storage/s_lock.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h index c6edb7a5e9e..4104cf6c4ca 100644 --- a/src/include/storage/s_lock.h +++ b/src/include/storage/s_lock.h @@ -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 |