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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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6
src/backend/jit/llvm/llvmjit_expr.c
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@ -121,7 +121,9 @@ llvm_compile_expr(ExprState *state)
LLVMValueRef v_aggnulls;
instr_time starttime;
instr_time deform_starttime;
instr_time endtime;
instr_time deform_endtime;
llvm_enter_fatal_on_oom();
@ -315,10 +317,14 @@ llvm_compile_expr(ExprState *state)
*/
if (tts_ops && desc && (context->base.flags & PGJIT_DEFORM))
{
INSTR_TIME_SET_CURRENT(deform_starttime);
l_jit_deform =
slot_compile_deform(context, desc,
tts_ops,
op->d.fetch.last_var);
INSTR_TIME_SET_CURRENT(deform_endtime);
INSTR_TIME_ACCUM_DIFF(context->base.instr.deform_counter,
deform_endtime, deform_starttime);
}
if (l_jit_deform)