Based on the infrastructure added in b8d7f053c5c2b, this allows expressions in expensive queries to be compiled to native code. In TPC-H this yields up to 40% of speedups.
Whenever a query has a total cost over jit_expression_minimum, all expressions in it will be JIT compiled. That allows to perform JIT compilation of all expressions in one go, which is a lot more efficient. Originally slated for v11, discussions at pgconf.us convinced me to add this to v10. Author: Andres Freund Reviewed-By: Robert Haas, Heikki Linnakangas Discussion: http://postgr.es/m/20161206034955.bh33paeralxbt...@alap3.anarazel.de Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/d31084e9d1118b25fd16580d9d8c2924b5740dff Modified Files -------------- configure | 109 ++ configure.in | 37 + src/Makefile.global.in | 12 + src/backend/Makefile | 8 + src/backend/access/common/heaptuple.c | 1438 +++++++++++++++-- src/backend/access/common/tupdesc.c | 6 + src/backend/executor/Makefile | 6 +- src/backend/executor/execExprCompile.c | 2724 ++++++++++++++++++++++++++++++++ src/backend/executor/execExpr.c | 271 +++- src/backend/executor/execExprInterp.c | 202 ++- src/backend/executor/execMain.c | 5 + src/backend/executor/execTuples.c | 32 + src/backend/executor/nodeAgg.c | 393 ++--- src/backend/executor/nodeHash.c | 21 +- src/backend/lib/Makefile | 5 +- src/backend/lib/llvmjit.c | 324 ++++ src/backend/lib/llvmjit_profile.cpp | 33 + src/backend/utils/misc/guc.c | 50 + src/backend/utils/resowner/resowner.c | 32 + src/include/access/tupdesc.h | 8 + src/include/executor/execExpr.h | 55 +- src/include/executor/executor.h | 7 +- src/include/executor/hashjoin.h | 2 + src/include/executor/nodeAgg.h | 273 ++++ src/include/executor/tuptable.h | 7 +- src/include/lib/llvmjit.h | 45 + src/include/nodes/execnodes.h | 8 +- src/include/pg_config.h.in | 3 + src/include/utils/resowner_private.h | 7 + 29 files changed, 5689 insertions(+), 434 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
