attached.
--
Dave Cramer
519 939 0336
ICQ # 14675561
Index: backend/storage/lmgr/s_lock.c
===================================================================
RCS file: /usr/local/cvs/pgsql-server/src/backend/storage/lmgr/s_lock.c,v
retrieving revision 1.16
diff -c -r1.16 s_lock.c
*** backend/storage/lmgr/s_lock.c 8 Aug 2003 21:42:00 -0000 1.16
--- backend/storage/lmgr/s_lock.c 21 Apr 2004 20:27:34 -0000
***************
*** 76,82 ****
* The select() delays are measured in centiseconds (0.01 sec) because 10
* msec is a common resolution limit at the OS level.
*/
! #define SPINS_PER_DELAY 100
#define NUM_DELAYS 1000
#define MIN_DELAY_CSEC 1
#define MAX_DELAY_CSEC 100
--- 76,82 ----
* The select() delays are measured in centiseconds (0.01 sec) because 10
* msec is a common resolution limit at the OS level.
*/
! #define SPINS_PER_DELAY 10
#define NUM_DELAYS 1000
#define MIN_DELAY_CSEC 1
#define MAX_DELAY_CSEC 100
***************
*** 88,93 ****
--- 88,94 ----
while (TAS(lock))
{
+ __asm__ __volatile__ ( "rep;nop": : :"memory");
if (++spins > SPINS_PER_DELAY)
{
if (++delays > NUM_DELAYS)
Index: include/storage/s_lock.h
===================================================================
RCS file: /usr/local/cvs/pgsql-server/src/include/storage/s_lock.h,v
retrieving revision 1.115.2.1
diff -c -r1.115.2.1 s_lock.h
*** include/storage/s_lock.h 4 Nov 2003 09:43:56 -0000 1.115.2.1
--- include/storage/s_lock.h 21 Apr 2004 20:26:25 -0000
***************
*** 103,110 ****
register slock_t _res = 1;
__asm__ __volatile__(
! " lock \n"
" xchgb %0,%1 \n"
: "=q"(_res), "=m"(*lock)
: "0"(_res));
return (int) _res;
--- 103,113 ----
register slock_t _res = 1;
__asm__ __volatile__(
! " cmpb $0,%1 \n"
! " jne 1f \n"
! " lock \n"
" xchgb %0,%1 \n"
+ " 1:\n"
: "=q"(_res), "=m"(*lock)
: "0"(_res));
return (int) _res;
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