index 1a83b2416f42f484b286a9cde872cbe4a702e46a..435b4597083104c480e2a5bc123faa6cf2516aff 100644 (file)
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/mmgr/aset.c,v 1.54 2003年11月29日 19:52:04 pgsql Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/mmgr/aset.c,v 1.55 2004年05月26日 19:44:15 tgl Exp $
*
* NOTE:
* This is a new (Feb. 05, 1999) implementation of the allocation set
* CAUTION: ALLOC_MINBITS must be large enough so that
* 1<<ALLOC_MINBITS is at least MAXALIGN,
* or we may fail to align the smallest chunks adequately.
- * 16-byte alignment is enough on all currently known machines.
+ * 8-byte alignment is enough on all currently known machines.
*
* With the current parameters, request sizes up to 8K are treated as chunks,
* larger requests go into dedicated blocks. Change ALLOCSET_NUM_FREELISTS
*--------------------
*/
-#define ALLOC_MINBITS 4 /* smallest chunk size is 16 bytes */
-#define ALLOCSET_NUM_FREELISTS 10
+#define ALLOC_MINBITS 3 /* smallest chunk size is 8 bytes */
+#define ALLOCSET_NUM_FREELISTS 11
#define ALLOC_CHUNK_LIMIT (1 << (ALLOCSET_NUM_FREELISTS-1+ALLOC_MINBITS))
/* Size of largest chunk that we use a fixed size for */