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Added GUC configuration options to control access statistics.

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Jan
REL7_2_STABLE
Jan Wieck 25 years ago
parent 2f3bd9eb88
commit 6497a7fd71
4 changed files with 95 additions and 25 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 59
      src/backend/postmaster/pgstat.c
  2. 9
      src/backend/utils/misc/guc.c
  3. 10
      src/backend/utils/misc/postgresql.conf.sample
  4. 42
      src/include/pgstat.h

59
src/backend/postmaster/pgstat.c
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@ -14,12 +14,9 @@
* thus an initdb and we might want to provide this as a
* patch for 7.1.
*
* - Make the functions from contrib/pgstat_tmp builtin
* and create the views on initdb.
*
* Copyright (c) 2001, PostgreSQL Global Development Group
*
* $Id: pgstat.c,v 1.3 2001/06/30 19:01:27 petere Exp $
* $Id: pgstat.c,v 1.4 2001/07/05 15:19:40 wieck Exp $
* ----------
*/
#include "postgres.h"
@ -56,7 +53,11 @@
* Global data
* ----------
*/
bool pgstat_collect_startcollector = true;
bool pgstat_collect_resetonpmstart = true;
bool pgstat_collect_querystring = false;
bool pgstat_collect_tuplelevel = false;
bool pgstat_collect_blocklevel = false;
/* ----------
* Local data
@ -135,6 +136,13 @@ pgstat_init(void)
{
int alen;
/*
* Force start of collector daemon if something to collect
*/
if (pgstat_collect_querystring || pgstat_collect_tuplelevel ||
pgstat_collect_blocklevel)
pgstat_collect_startcollector = true;
/*
* Initialize the filenames for the status reports.
*/
@ -143,6 +151,20 @@ pgstat_init(void)
snprintf(pgStat_fname, MAXPGPATH,
PGSTAT_STAT_FILENAME, DataDir);
/*
* If we don't have to start a collector or should reset the
* collected statistics on postmaster start, simply remove the
* file.
*/
if (!pgstat_collect_startcollector || pgstat_collect_resetonpmstart)
unlink(pgStat_fname);
/*
* Nothing else required if collector will not get started
*/
if (!pgstat_collect_startcollector)
return 0;
/*
* Create the UDP socket for receiving statistic messages
*/
@ -211,6 +233,12 @@ pgstat_init(void)
int
pgstat_start(void)
{
/*
* Do nothing if no collector needed
*/
if (!pgstat_collect_startcollector)
return 0;
/*
* Check that the socket at least is there
*/
@ -275,6 +303,9 @@ pgstat_beterm(int pid)
{
PgStat_MsgBeterm msg;
if (!pgstat_collect_startcollector)
return;
msg.m_hdr.m_type = PGSTAT_MTYPE_BETERM;
msg.m_hdr.m_backendid = 0;
msg.m_hdr.m_procpid = pid;
@ -302,7 +333,7 @@ pgstat_bestart(void)
{
PgStat_MsgBestart msg;
if (pgStatSock < 0)
if (!pgstat_collect_startcollector || pgStatSock < 0)
return;
pgstat_setheader(&msg.m_hdr, PGSTAT_MTYPE_BESTART);
@ -324,7 +355,7 @@ pgstat_report_activity(char *what)
PgStat_MsgActivity msg;
int len;
if (pgStatSock < 0)
if (!pgstat_collect_querystring || pgStatSock < 0)
return;
len = strlen(what);
@ -354,6 +385,10 @@ pgstat_report_tabstat(void)
int n;
int len;
if (!pgstat_collect_querystring && !pgstat_collect_tuplelevel &&
!pgstat_collect_blocklevel)
return;
if (pgStatSock < 0)
return;
@ -654,7 +689,7 @@ pgstat_initstats(PgStat_Info *stats, Relation rel)
stats->heap_scan_counted = FALSE;
stats->index_scan_counted = FALSE;
if (pgStatSock < 0)
if (!pgstat_collect_startcollector || pgStatSock < 0)
{
stats->no_stats = TRUE;
return;
@ -764,6 +799,10 @@ pgstat_initstats(PgStat_Info *stats, Relation rel)
void
pgstat_count_xact_commit(void)
{
if (!pgstat_collect_querystring && !pgstat_collect_tuplelevel &&
!pgstat_collect_blocklevel)
return;
pgStatXactCommit++;
/*
@ -791,6 +830,10 @@ pgstat_count_xact_commit(void)
void
pgstat_count_xact_rollback(void)
{
if (!pgstat_collect_querystring && !pgstat_collect_tuplelevel &&
!pgstat_collect_blocklevel)
return;
pgStatXactRollback++;
/*

9
src/backend/utils/misc/guc.c
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@ -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 1.44 2001/06/30 22:03:26 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.45 2001/07/05 15:19:40 wieck Exp $
*
* Copyright 2000 by PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
@ -36,6 +36,7 @@
#include "storage/proc.h"
#include "tcop/tcopprot.h"
#include "utils/datetime.h"
#include "pgstat.h"
/* XXX these should be in other modules' header files */
@ -225,6 +226,12 @@ static struct config_bool
{"show_btree_build_stats", PGC_SUSET, &Show_btree_build_stats, false, NULL},
#endif
{"collect_startcollector", PGC_POSTMASTER, &pgstat_collect_startcollector, true, NULL},
{"collect_resetonpmstart", PGC_POSTMASTER, &pgstat_collect_resetonpmstart, true, NULL},
{"collect_querystring", PGC_SUSET, &pgstat_collect_querystring, false, NULL},
{"collect_tuplelevel", PGC_SUSET, &pgstat_collect_tuplelevel, false, NULL},
{"collect_blocklevel", PGC_SUSET, &pgstat_collect_blocklevel, false, NULL},
{"trace_notify", PGC_USERSET, &Trace_notify, false, NULL},
#ifdef LOCK_DEBUG

10
src/backend/utils/misc/postgresql.conf.sample
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@ -149,6 +149,16 @@
#endif
#
# Access statistics collection
#
#collect_startcollector = true
#collect_resetonpmstart = true
#collect_querystring = false
#collect_tuplelevel = false
#collect_blocklevel = false
#
# Lock Tracing
#

42
src/include/pgstat.h
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@ -5,7 +5,7 @@
*
* Copyright (c) 2001, PostgreSQL Global Development Group
*
* $Id: pgstat.h,v 1.3 2001/06/29 23:03:02 tgl Exp $
* $Id: pgstat.h,v 1.4 2001/07/05 15:19:40 wieck Exp $
* ----------
*/
#ifndef PGSTAT_H
@ -321,7 +321,15 @@ typedef union PgStat_Msg
} PgStat_Msg;
/* ----------
* Global variables
* ----------
*/
extern bool pgstat_collect_startcollector;
extern bool pgstat_collect_resetonpmstart;
extern bool pgstat_collect_querystring;
extern bool pgstat_collect_tuplelevel;
extern bool pgstat_collect_blocklevel;
/* ----------
* Functions called from postmaster
@ -350,64 +358,66 @@ extern void pgstat_initstats(PgStat_Info *stats, Relation rel);
#define pgstat_reset_heap_scan(s) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL) \
(s)->heap_scan_counted = FALSE; \
} while (0)
#define pgstat_count_heap_scan(s) \
do { \
if ((s)->tabentry != NULL && !(s)->heap_scan_counted) { \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL && \
!(s)->heap_scan_counted) { \
((PgStat_TableEntry *)((s)->tabentry))->t_numscans++; \
(s)->heap_scan_counted = TRUE; \
} \
} while (0)
#define pgstat_count_heap_getnext(s) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_tuples_returned++; \
} while (0)
#define pgstat_count_heap_fetch(s) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_tuples_fetched++; \
} while (0)
#define pgstat_count_heap_insert(s) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_tuples_inserted++; \
} while (0)
#define pgstat_count_heap_update(s) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_tuples_updated++; \
} while (0)
#define pgstat_count_heap_delete(s) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_tuples_deleted++; \
} while (0)
#define pgstat_reset_index_scan(s) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL) \
(s)->index_scan_counted = FALSE; \
} while (0)
#define pgstat_count_index_scan(s) \
do { \
if ((s)->tabentry != NULL && !(s)->index_scan_counted) { \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL && \
!(s)->index_scan_counted) { \
((PgStat_TableEntry *)((s)->tabentry))->t_numscans++; \
(s)->index_scan_counted = TRUE; \
} \
} while (0)
#define pgstat_count_index_getnext(s) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_tuplelevel && (s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_tuples_returned++; \
} while (0)
#define pgstat_count_buffer_read(s,r) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_blocklevel && (s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_blocks_fetched++; \
else { \
if (!(s)->no_stats) { \
if (pgstat_collect_blocklevel && !(s)->no_stats) { \
pgstat_initstats((s), (r)); \
if ((s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_blocks_fetched++; \
@ -416,10 +426,10 @@ extern void pgstat_initstats(PgStat_Info *stats, Relation rel);
} while (0)
#define pgstat_count_buffer_hit(s,r) \
do { \
if ((s)->tabentry != NULL) \
if (pgstat_collect_blocklevel && (s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_blocks_hit++; \
else { \
if (!(s)->no_stats) { \
if (pgstat_collect_blocklevel && !(s)->no_stats) { \
pgstat_initstats((s), (r)); \
if ((s)->tabentry != NULL) \
((PgStat_TableEntry *)((s)->tabentry))->t_blocks_hit++; \

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