diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-09-29 04:02:27 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-09-29 04:02:27 +0000 |
| commit | 499abb0c0f21cb861c5af1d49a06469f3cfcc1eb (patch) | |
| tree | 0af6262d9b6d1159315e93e90e69047b959ea5f5 /src/backend/utils/misc/guc.c | |
| parent | 818fb55ac49b4b20e65d9899fc1784e54e86db58 (diff) | |
Implement new 'lightweight lock manager' that's intermediate between
existing lock manager and spinlocks: it understands exclusive vs shared
lock but has few other fancy features. Replace most uses of spinlocks
with lightweight locks. All remaining uses of spinlocks have very short
lock hold times (a few dozen instructions), so tweak spinlock backoff
code to work efficiently given this assumption. All per my proposal on
pghackers 26-Sep-01.
Diffstat (limited to 'src/backend/utils/misc/guc.c')
| -rw-r--r-- | src/backend/utils/misc/guc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index 17f142b1eaf..6efd41c2a8e 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -4,7 +4,7 @@ * Support for grand unified configuration scheme, including SET * command, configuration file, and command line options. * - * $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.52 2001/09/23 21:52:36 petere Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.53 2001/09/29 04:02:25 tgl Exp $ * * Copyright 2000 by PostgreSQL Global Development Group * Written by Peter Eisentraut <peter_e@gmx.net>. @@ -240,7 +240,7 @@ static struct config_bool #ifdef LOCK_DEBUG {"trace_locks", PGC_SUSET, &Trace_locks, false, NULL}, {"trace_userlocks", PGC_SUSET, &Trace_userlocks, false, NULL}, - {"trace_spinlocks", PGC_SUSET, &Trace_spinlocks, false, NULL}, + {"trace_lwlocks", PGC_SUSET, &Trace_lwlocks, false, NULL}, {"debug_deadlocks", PGC_SUSET, &Debug_deadlocks, false, NULL}, #endif |