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Some *very* major changes by darrenk@insightdist.com (Darren King)

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==========================================
What follows is a set of diffs that cleans up the usage of BLCKSZ.

As a side effect, the person compiling the code can change the
value of BLCKSZ _at_their_own_risk_.  By that, I mean that I've
tried it here at 4096 and 16384 with no ill-effects.  A value
of 4096 _shouldn't_ affect much as far as the kernel/file system
goes, but making it bigger than 8192 can have severe consequences
if you don't know what you're doing.  16394 worked for me, _BUT_
when I went to 32768 and did an initdb, the SCSI driver broke and
the partition that I was running under went to hell in a hand
basket. Had to reboot and do a good bit of fsck'ing to fix things up.

The patch can be safely applied though.  Just leave BLCKSZ = 8192
and everything is as before.  It basically only cleans up all of the
references to BLCKSZ in the code.

If this patch is applied, a comment in the config.h file though above
the BLCKSZ define with warning about monkeying around with it would
be a good idea.

Darren  darrenk@insightdist.com

(Also cleans up some of the #includes in files referencing BLCKSZ.)
==========================================
This commit is contained in:
Marc G. Fournier
1998-01-13 04:05:12 +00:00
parent f0445dcbc4
commit 374bb5d261
15 changed files with 156 additions and 167 deletions
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25
src/backend/utils/sort/psort.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/sort/Attic/psort.c,v 1.30 1998/01/07 21:06:39 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/sort/Attic/psort.c,v 1.31 1998/01/13 04:04:57 scrappy Exp $
*
* NOTES
* Sorts the first relation into the second relation.
@ -40,27 +40,22 @@
#include <unistd.h>
#include "postgres.h"
#include "miscadmin.h"
#include "executor/execdebug.h"
#include "access/heapam.h"
#include "access/htup.h"
#include "access/relscan.h"
#include "access/skey.h"
#include "storage/buf.h"
#include "storage/bufmgr.h" /* for BLCKSZ */
#include "utils/portal.h" /* for {Start,End}PortalAllocMode */
#include "utils/elog.h"
#include "utils/rel.h"
#include "executor/execdebug.h"
#include "executor/executor.h"
#include "nodes/execnodes.h"
#include "nodes/plannodes.h"
#include "executor/executor.h"
#include "utils/lselect.h"
#include "utils/psort.h"
#include "miscadmin.h"
#include "storage/buf.h"
#include "storage/fd.h"
#include "utils/lselect.h"
#include "utils/portal.h" /* for {Start,End}PortalAllocMode */
#include "utils/psort.h"
#include "utils/rel.h"
static bool createfirstrun(Sort * node);
static bool createrun(Sort * node, FILE * file);
@ -250,7 +245,7 @@ inittapes(Sort * node)
#define USEMEM(NODE,AMT) PS(node)->treeContext.sortMem -= (AMT)
#define FREEMEM(NODE,AMT) PS(node)->treeContext.sortMem += (AMT)
#define LACKMEM(NODE) (PS(node)->treeContext.sortMem <= MAXBLCKSZ) /* not accurate */
#define LACKMEM(NODE) (PS(node)->treeContext.sortMem <= BLCKSZ) /* not accurate */
#define TRACEMEM(FUNC)
#define TRACEOUT(FUNC, TUP)