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Commit1f0c6a9

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Add EXPLAIN support for JIT.
This just shows a few details about JITing, e.g. how many functionshave been JITed, and how long that took. To avoid noise in regressiontests with functions sometimes being JITed in --with-llvm builds,disable display when COSTS OFF is specified.Author: Andres FreundDiscussion:https://postgr.es/m/20170901064131.tazjxwus3k2w3ybh@alap3.anarazel.de
1 parent9370462 commit1f0c6a9

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2 files changed

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-0
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2 files changed

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‎src/backend/commands/explain.c

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Original file line numberDiff line numberDiff line change
@@ -21,6 +21,7 @@
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#include"commands/prepare.h"
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#include"executor/nodeHash.h"
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#include"foreign/fdwapi.h"
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#include"jit/jit.h"
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#include"nodes/extensible.h"
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#include"nodes/nodeFuncs.h"
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#include"optimizer/clauses.h"
@@ -556,6 +557,16 @@ ExplainOnePlan(PlannedStmt *plannedstmt, IntoClause *into, ExplainState *es,
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if (es->analyze)
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ExplainPrintTriggers(es,queryDesc);
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/*
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* Print info about JITing. Tied to es->costs because we don't want to
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* display this in regression tests, as it'd cause output differences
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* depending on build options. Might want to separate that out from COSTS
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* at a later stage.
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*/
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if (queryDesc->estate->es_jit&&es->costs&&
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queryDesc->estate->es_jit->created_functions>0)
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ExplainPrintJIT(es,queryDesc);
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/*
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* Close down the query and free resources. Include time for this in the
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* total execution time (although it should be pretty minimal).
@@ -677,6 +688,54 @@ ExplainPrintTriggers(ExplainState *es, QueryDesc *queryDesc)
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ExplainCloseGroup("Triggers","Triggers", false,es);
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}
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/*
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* ExplainPrintJIT -
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* Append information about JITing to es->str.
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*/
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void
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ExplainPrintJIT(ExplainState*es,QueryDesc*queryDesc)
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{
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JitContext*jc=queryDesc->estate->es_jit;
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ExplainOpenGroup("JIT","JIT", true,es);
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if (es->format==EXPLAIN_FORMAT_TEXT)
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{
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es->indent+=1;
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appendStringInfo(es->str,"JIT:\n");
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}
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ExplainPropertyInteger("Functions",NULL,jc->created_functions,es);
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if (es->analyze&&es->timing)
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ExplainPropertyFloat("Generation Time","ms",
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1000.0*INSTR_TIME_GET_DOUBLE(jc->generation_counter),
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3,es);
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ExplainPropertyBool("Inlining",jc->flags&PGJIT_INLINE,es);
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if (es->analyze&&es->timing)
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ExplainPropertyFloat("Inlining Time","ms",
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1000.0*INSTR_TIME_GET_DOUBLE(jc->inlining_counter),
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3,es);
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ExplainPropertyBool("Optimization",jc->flags&PGJIT_OPT3,es);
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if (es->analyze&&es->timing)
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ExplainPropertyFloat("Optimization Time","ms",
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1000.0*INSTR_TIME_GET_DOUBLE(jc->optimization_counter),
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3,es);
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if (es->analyze&&es->timing)
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ExplainPropertyFloat("Emission Time","ms",
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1000.0*INSTR_TIME_GET_DOUBLE(jc->emission_counter),
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3,es);
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ExplainCloseGroup("JIT","JIT", true,es);
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if (es->format==EXPLAIN_FORMAT_TEXT)
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{
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es->indent-=1;
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}
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}
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/*
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* ExplainQueryText -
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* add a "Query Text" node that contains the actual text of the query

‎src/include/commands/explain.h

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Original file line numberDiff line numberDiff line change
@@ -81,6 +81,8 @@ extern void ExplainOnePlan(PlannedStmt *plannedstmt, IntoClause *into,
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externvoidExplainPrintPlan(ExplainState*es,QueryDesc*queryDesc);
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externvoidExplainPrintTriggers(ExplainState*es,QueryDesc*queryDesc);
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externvoidExplainPrintJIT(ExplainState*es,QueryDesc*queryDesc);
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externvoidExplainQueryText(ExplainState*es,QueryDesc*queryDesc);
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externvoidExplainBeginOutput(ExplainState*es);

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