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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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12
src/backend/commands/explain.c
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@ -893,6 +893,7 @@ ExplainPrintJIT(ExplainState *es, int jit_flags, JitInstrumentation *ji)
/* calculate total time */
INSTR_TIME_SET_ZERO(total_time);
/* don't add deform_counter, it's included in generation_counter */
INSTR_TIME_ADD(total_time, ji->generation_counter);
INSTR_TIME_ADD(total_time, ji->inlining_counter);
INSTR_TIME_ADD(total_time, ji->optimization_counter);
@ -920,8 +921,9 @@ ExplainPrintJIT(ExplainState *es, int jit_flags, JitInstrumentation *ji)
{
ExplainIndentText(es);
appendStringInfo(es->str,
"Timing: %s %.3f ms, %s %.3f ms, %s %.3f ms, %s %.3f ms, %s %.3f ms\n",
"Timing: %s %.3f ms (%s %.3f ms), %s %.3f ms, %s %.3f ms, %s %.3f ms, %s %.3f ms\n",
"Generation", 1000.0 * INSTR_TIME_GET_DOUBLE(ji->generation_counter),
"Deform", 1000.0 * INSTR_TIME_GET_DOUBLE(ji->deform_counter),
"Inlining", 1000.0 * INSTR_TIME_GET_DOUBLE(ji->inlining_counter),
"Optimization", 1000.0 * INSTR_TIME_GET_DOUBLE(ji->optimization_counter),
"Emission", 1000.0 * INSTR_TIME_GET_DOUBLE(ji->emission_counter),
@ -945,9 +947,15 @@ ExplainPrintJIT(ExplainState *es, int jit_flags, JitInstrumentation *ji)
{
ExplainOpenGroup("Timing", "Timing", true, es);
ExplainPropertyFloat("Generation", "ms",
ExplainOpenGroup("Generation", "Generation", true, es);
ExplainPropertyFloat("Deform", "ms",
1000.0 * INSTR_TIME_GET_DOUBLE(ji->deform_counter),
3, es);
ExplainPropertyFloat("Total", "ms",
1000.0 * INSTR_TIME_GET_DOUBLE(ji->generation_counter),
3, es);
ExplainCloseGroup("Generation", "Generation", true, es);
ExplainPropertyFloat("Inlining", "ms",
1000.0 * INSTR_TIME_GET_DOUBLE(ji->inlining_counter),
3, es);