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Add JIT deform_counter

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generation_counter includes time spent on both JIT:ing expressions
and tuple deforming which are configured independently via options
jit_expressions and jit_tuple_deforming.  As they are  combined in
the same counter it's not apparent what fraction of time the tuple
deforming takes.

This adds deform_counter dedicated to tuple deforming, which allows
seeing more directly the influence jit_tuple_deforming is having on
the query. The counter is exposed in EXPLAIN and pg_stat_statements
bumpin pg_stat_statements to 1.11.

Author: Dmitry Dolgov <9erthalion6@gmail.com>
Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/20220612091253.eegstkufdsu4kfls@erthalion.local
This commit is contained in:
Daniel Gustafsson
2023-09-08 15:05:12 +02:00
parent 6fe3cefde4
commit 5a3423ad8e
11 changed files with 145 additions and 6 deletions
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35
contrib/pg_stat_statements/pg_stat_statements.c
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@ -117,7 +117,8 @@ typedef enum pgssVersion
PGSS_V1_3,
PGSS_V1_8,
PGSS_V1_9,
PGSS_V1_10
PGSS_V1_10,
PGSS_V1_11
} pgssVersion;
typedef enum pgssStoreKind
@ -192,6 +193,10 @@ typedef struct Counters
double jit_generation_time; /* total time to generate jit code */
int64 jit_inlining_count; /* number of times inlining time has been
* > 0 */
double jit_deform_time; /* total time to deform tuples in jit code */
int64 jit_deform_count; /* number of times deform time has been >
* 0 */
double jit_inlining_time; /* total time to inline jit code */
int64 jit_optimization_count; /* number of times optimization time
* has been > 0 */
@ -312,6 +317,7 @@ PG_FUNCTION_INFO_V1(pg_stat_statements_1_3);
PG_FUNCTION_INFO_V1(pg_stat_statements_1_8);
PG_FUNCTION_INFO_V1(pg_stat_statements_1_9);
PG_FUNCTION_INFO_V1(pg_stat_statements_1_10);
PG_FUNCTION_INFO_V1(pg_stat_statements_1_11);
PG_FUNCTION_INFO_V1(pg_stat_statements);
PG_FUNCTION_INFO_V1(pg_stat_statements_info);
@ -1398,6 +1404,10 @@ pgss_store(const char *query, uint64 queryId,
e->counters.jit_functions += jitusage->created_functions;
e->counters.jit_generation_time += INSTR_TIME_GET_MILLISEC(jitusage->generation_counter);
if (INSTR_TIME_GET_MILLISEC(jitusage->deform_counter))
e->counters.jit_deform_count++;
e->counters.jit_deform_time += INSTR_TIME_GET_MILLISEC(jitusage->deform_counter);
if (INSTR_TIME_GET_MILLISEC(jitusage->inlining_counter))
e->counters.jit_inlining_count++;
e->counters.jit_inlining_time += INSTR_TIME_GET_MILLISEC(jitusage->inlining_counter);
@ -1460,7 +1470,8 @@ pg_stat_statements_reset(PG_FUNCTION_ARGS)
#define PG_STAT_STATEMENTS_COLS_V1_8 32
#define PG_STAT_STATEMENTS_COLS_V1_9 33
#define PG_STAT_STATEMENTS_COLS_V1_10 43
#define PG_STAT_STATEMENTS_COLS 43 /* maximum of above */
#define PG_STAT_STATEMENTS_COLS_V1_11 45
#define PG_STAT_STATEMENTS_COLS 45 /* maximum of above */
/*
* Retrieve statement statistics.
@ -1472,6 +1483,16 @@ pg_stat_statements_reset(PG_FUNCTION_ARGS)
* expected API version is identified by embedding it in the C name of the
* function. Unfortunately we weren't bright enough to do that for 1.1.
*/
Datum
pg_stat_statements_1_11(PG_FUNCTION_ARGS)
{
bool showtext = PG_GETARG_BOOL(0);
pg_stat_statements_internal(fcinfo, PGSS_V1_11, showtext);
return (Datum) 0;
}
Datum
pg_stat_statements_1_10(PG_FUNCTION_ARGS)
{
@ -1602,6 +1623,10 @@ pg_stat_statements_internal(FunctionCallInfo fcinfo,
if (api_version != PGSS_V1_10)
elog(ERROR, "incorrect number of output arguments");
break;
case PG_STAT_STATEMENTS_COLS_V1_11:
if (api_version != PGSS_V1_11)
elog(ERROR, "incorrect number of output arguments");
break;
default:
elog(ERROR, "incorrect number of output arguments");
}
@ -1834,6 +1859,11 @@ pg_stat_statements_internal(FunctionCallInfo fcinfo,
values[i++] = Int64GetDatumFast(tmp.jit_emission_count);
values[i++] = Float8GetDatumFast(tmp.jit_emission_time);
}
if (api_version >= PGSS_V1_11)
{
values[i++] = Int64GetDatumFast(tmp.jit_deform_count);
values[i++] = Float8GetDatumFast(tmp.jit_deform_time);
}
Assert(i == (api_version == PGSS_V1_0 ? PG_STAT_STATEMENTS_COLS_V1_0 :
api_version == PGSS_V1_1 ? PG_STAT_STATEMENTS_COLS_V1_1 :
@ -1842,6 +1872,7 @@ pg_stat_statements_internal(FunctionCallInfo fcinfo,
api_version == PGSS_V1_8 ? PG_STAT_STATEMENTS_COLS_V1_8 :
api_version == PGSS_V1_9 ? PG_STAT_STATEMENTS_COLS_V1_9 :
api_version == PGSS_V1_10 ? PG_STAT_STATEMENTS_COLS_V1_10 :
api_version == PGSS_V1_11 ? PG_STAT_STATEMENTS_COLS_V1_11 :
-1 /* fail if you forget to update this assert */ ));
tuplestore_putvalues(rsinfo->setResult, rsinfo->setDesc, values, nulls);