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Add a few more DTrace probes to the backend.

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Robert Lor
This commit is contained in:
Alvaro Herrera
2008-08-01 13:16:09 +00:00
parent 26e6991a2d
commit e36e6b1cab
16 changed files with 231 additions and 41 deletions
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22
src/backend/tcop/postgres.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/tcop/postgres.c,v 1.554 2008/07/18 20:26:06 tgl Exp $
* $PostgreSQL: pgsql/src/backend/tcop/postgres.c,v 1.555 2008/08/01 13:16:09 alvherre Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@@ -50,6 +50,8 @@
#include "miscadmin.h"
#include "nodes/print.h"
#include "optimizer/planner.h"
#include "pgstat.h"
#include "pg_trace.h"
#include "parser/analyze.h"
#include "parser/parser.h"
#include "postmaster/autovacuum.h"
@@ -70,7 +72,6 @@
#include "utils/snapmgr.h"
#include "mb/pg_wchar.h"
#include "pgstat.h"
extern int optind;
extern char *optarg;
@@ -551,6 +552,8 @@ pg_parse_query(const char *query_string)
{
List *raw_parsetree_list;
TRACE_POSTGRESQL_QUERY_PARSE_START(query_string);
if (log_parser_stats)
ResetUsage();
@@ -572,6 +575,8 @@ pg_parse_query(const char *query_string)
}
#endif
TRACE_POSTGRESQL_QUERY_PARSE_DONE(query_string);
return raw_parsetree_list;
}
@@ -591,6 +596,8 @@ pg_analyze_and_rewrite(Node *parsetree, const char *query_string,
Query *query;
List *querytree_list;
TRACE_POSTGRESQL_QUERY_REWRITE_START(query_string);
/*
* (1) Perform parse analysis.
*/
@@ -607,6 +614,8 @@ pg_analyze_and_rewrite(Node *parsetree, const char *query_string,
*/
querytree_list = pg_rewrite_query(query);
TRACE_POSTGRESQL_QUERY_REWRITE_DONE(query_string);
return querytree_list;
}
@@ -677,6 +686,8 @@ pg_plan_query(Query *querytree, int cursorOptions, ParamListInfo boundParams)
if (querytree->commandType == CMD_UTILITY)
return NULL;
TRACE_POSTGRESQL_QUERY_PLAN_START();
if (log_planner_stats)
ResetUsage();
@@ -711,6 +722,8 @@ pg_plan_query(Query *querytree, int cursorOptions, ParamListInfo boundParams)
if (Debug_print_plan)
elog_node_display(DEBUG1, "plan", plan, Debug_pretty_print);
TRACE_POSTGRESQL_QUERY_PLAN_DONE();
return plan;
}
@@ -785,6 +798,7 @@ exec_simple_query(const char *query_string)
bool isTopLevel;
char msec_str[32];
/*
* Report query to various monitoring facilities.
*/
@@ -792,6 +806,8 @@ exec_simple_query(const char *query_string)
pgstat_report_activity(query_string);
TRACE_POSTGRESQL_QUERY_START(query_string);
/*
* We use save_log_statement_stats so ShowUsage doesn't report incorrect
* results because ResetUsage wasn't called.
@@ -1058,6 +1074,8 @@ exec_simple_query(const char *query_string)
if (save_log_statement_stats)
ShowUsage("QUERY STATISTICS");
TRACE_POSTGRESQL_QUERY_DONE(query_string);
debug_query_string = NULL;
}

11
src/backend/tcop/pquery.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/tcop/pquery.c,v 1.123 2008/05/12 20:02:02 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/tcop/pquery.c,v 1.124 2008/08/01 13:16:09 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@@ -19,6 +19,7 @@
#include "commands/prepare.h"
#include "commands/trigger.h"
#include "miscadmin.h"
#include "pg_trace.h"
#include "tcop/pquery.h"
#include "tcop/tcopprot.h"
#include "tcop/utility.h"
@@ -711,6 +712,8 @@ PortalRun(Portal portal, long count, bool isTopLevel,
AssertArg(PortalIsValid(portal));
TRACE_POSTGRESQL_QUERY_EXECUTE_START();
/* Initialize completion tag to empty string */
if (completionTag)
completionTag[0] = '\0';
@@ -857,6 +860,8 @@ PortalRun(Portal portal, long count, bool isTopLevel,
if (log_executor_stats && portal->strategy != PORTAL_MULTI_QUERY)
ShowUsage("EXECUTOR STATISTICS");
TRACE_POSTGRESQL_QUERY_EXECUTE_DONE();
return result;
}
@@ -1237,6 +1242,8 @@ PortalRunMulti(Portal portal, bool isTopLevel,
*/
PlannedStmt *pstmt = (PlannedStmt *) stmt;
TRACE_POSTGRESQL_QUERY_EXECUTE_START();
if (log_executor_stats)
ResetUsage();
@@ -1257,6 +1264,8 @@ PortalRunMulti(Portal portal, bool isTopLevel,
if (log_executor_stats)
ShowUsage("EXECUTOR STATISTICS");
TRACE_POSTGRESQL_QUERY_EXECUTE_DONE();
}
else
{