From: Howard Chu <hyc@openldap.org>
Date: Sat, 15 Dec 2001 23:21:37 +0000 (+0000)
Subject: Use DB_HASH instead of DB_BTREE for index databases. Since index keys are
X-Git-Tag: LDBM_PRE_GIANT_RWLOCK~644
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=bf61a1ca9d10afd4ae0fb9779b45ec81a9f839cc;p=openldap

Use DB_HASH instead of DB_BTREE for index databases. Since index keys are
mainly 4-byte hashes already, there is no locality-of-reference to exploit
as a Btree. About a 7% performance gain.
---

diff --git a/servers/slapd/back-bdb/dbcache.c b/servers/slapd/back-bdb/dbcache.c
index 9fefd7f287..5e2d6dd41b 100644
--- a/servers/slapd/back-bdb/dbcache.c
+++ b/servers/slapd/back-bdb/dbcache.c
@@ -71,7 +71,6 @@ bdb_db_cache(
 	rc = db->bdi_db->set_pagesize( db->bdi_db, BDB_PAGESIZE );
 #ifdef BDB_IDL_MULTI
 	rc = db->bdi_db->set_flags( db->bdi_db, DB_DUP | DB_DUPSORT );
-	rc = db->bdi_db->set_dup_compare( db->bdi_db, bdb_bt_compare );
 #endif
 
 	file = ch_malloc( strlen( name ) + sizeof(BDB_SUFFIX) );
@@ -79,7 +78,7 @@ bdb_db_cache(
 
 	rc = db->bdi_db->open( db->bdi_db,
 		file, name,
-		DB_BTREE, bdb->bi_db_opflags | DB_CREATE | DB_THREAD,
+		DB_HASH, bdb->bi_db_opflags | DB_CREATE | DB_THREAD,
 		bdb->bi_dbenv_mode );
 
 	ch_free( file );