From cc415a56d09a8da7c919088036b6097b70f10791 Mon Sep 17 00:00:00 2001 From: Andres Freund Date: Thu, 22 Mar 2018 11:45:07 -0700 Subject: Basic planner and executor integration for JIT. This adds simple cost based plan time decision about whether JIT should be performed. jit_above_cost, jit_optimize_above_cost are compared with the total cost of a plan, and if the cost is above them JIT is performed / optimization is performed respectively. For that PlannedStmt and EState have a jitFlags (es_jit_flags) field that stores information about what JIT operations should be performed. EState now also has a new es_jit field, which can store a JitContext. When there are no errors the context is released in standard_ExecutorEnd(). It is likely that the default values for jit_[optimize_]above_cost will need to be adapted further, but in my test these values seem to work reasonably. Author: Andres Freund, with feedback by Peter Eisentraut Discussion: https://postgr.es/m/20170901064131.tazjxwus3k2w3ybh@alap3.anarazel.de --- src/backend/executor/execParallel.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/backend/executor/execParallel.c') diff --git a/src/backend/executor/execParallel.c b/src/backend/executor/execParallel.c index 14b0b89463c..52f1a96db5f 100644 --- a/src/backend/executor/execParallel.c +++ b/src/backend/executor/execParallel.c @@ -73,6 +73,7 @@ typedef struct FixedParallelExecutorState int64 tuples_needed; /* tuple bound, see ExecSetTupleBound */ dsa_pointer param_exec; int eflags; + int jit_flags; } FixedParallelExecutorState; /* @@ -680,6 +681,7 @@ ExecInitParallelPlan(PlanState *planstate, EState *estate, fpes->tuples_needed = tuples_needed; fpes->param_exec = InvalidDsaPointer; fpes->eflags = estate->es_top_eflags; + fpes->jit_flags = estate->es_jit_flags; shm_toc_insert(pcxt->toc, PARALLEL_KEY_EXECUTOR_FIXED, fpes); /* Store query string */ @@ -1287,6 +1289,7 @@ ParallelQueryMain(dsm_segment *seg, shm_toc *toc) area = dsa_attach_in_place(area_space, seg); /* Start up the executor */ + queryDesc->plannedstmt->jitFlags = fpes->jit_flags; ExecutorStart(queryDesc, fpes->eflags); /* Special executor initialization steps for parallel workers */ -- cgit v1.2.3