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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2018-09-15 17:24:35 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2018-09-15 17:24:35 -0400 |
| commit | 8f32bacc006692e63f137924d5849b3cb9f2d4d3 (patch) | |
| tree | f164bbf9e868955d8e3c22850e16c03c77bbea04 /src | |
| parent | 1f4a920b7309499d2d0c4ceda5e6356e10bc51da (diff) | |
| download | postgresql-8f32bacc006692e63f137924d5849b3cb9f2d4d3.tar.gz postgresql-8f32bacc006692e63f137924d5849b3cb9f2d4d3.zip | |
In v11, disable JIT by default (it's still enabled by default in HEAD).
Per discussion, JIT isn't quite mature enough to ship enabled-by-default.
I failed to resist the temptation to do a bunch of copy-editing on the
related documentation. Also, clean up some inconsistencies in which
section of config.sgml the JIT GUCs are documented in vs. what guc.c
and postgresql.config.sample had.
Discussion: https://postgr.es/m/20180914222657.mw25esrzbcnu6qlu@alap3.anarazel.de
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/jit/jit.c | 2 | ||||
| -rw-r--r-- | src/backend/utils/misc/guc.c | 2 | ||||
| -rw-r--r-- | src/backend/utils/misc/postgresql.conf.sample | 15 |
3 files changed, 10 insertions, 9 deletions
diff --git a/src/backend/jit/jit.c b/src/backend/jit/jit.c index c1703094db7..7d3883d3bf4 100644 --- a/src/backend/jit/jit.c +++ b/src/backend/jit/jit.c @@ -33,7 +33,7 @@ /* GUCs */ bool jit_enabled = true; -char *jit_provider = "llvmjit"; +char *jit_provider = NULL; bool jit_debugging_support = false; bool jit_dump_bitcode = false; bool jit_expressions = true; diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index 0625eff2191..77662aff7fa 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -3895,7 +3895,7 @@ static struct config_string ConfigureNamesString[] = }, { - {"jit_provider", PGC_POSTMASTER, FILE_LOCATIONS, + {"jit_provider", PGC_POSTMASTER, CLIENT_CONN_PRELOAD, gettext_noop("JIT provider to use."), NULL, GUC_SUPERUSER_ONLY diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample index 7486d20a34f..4e61bc6521f 100644 --- a/src/backend/utils/misc/postgresql.conf.sample +++ b/src/backend/utils/misc/postgresql.conf.sample @@ -320,11 +320,12 @@ #parallel_setup_cost = 1000.0 # same scale as above #jit_above_cost = 100000 # perform JIT compilation if available - # and query more expensive, -1 disables -#jit_optimize_above_cost = 500000 # optimize JITed functions if query is - # more expensive, -1 disables -#jit_inline_above_cost = 500000 # attempt to inline operators and - # functions if query is more expensive, + # and query more expensive than this; + # -1 disables +#jit_inline_above_cost = 500000 # inline small functions if query is + # more expensive than this; -1 disables +#jit_optimize_above_cost = 500000 # use expensive JIT optimizations if + # query is more expensive than this; # -1 disables #min_parallel_table_scan_size = 8MB @@ -350,6 +351,7 @@ #join_collapse_limit = 8 # 1 disables collapsing of explicit # JOIN clauses #force_parallel_mode = off +#jit = on # allow JIT compilation #plan_cache_mode = auto # auto, force_generic_plan or # force_custom_plan @@ -616,13 +618,12 @@ #shared_preload_libraries = '' # (change requires restart) #local_preload_libraries = '' #session_preload_libraries = '' +#jit_provider = 'llvmjit' # JIT library to use # - Other Defaults - #dynamic_library_path = '$libdir' -#jit = on # allow JIT compilation -#jit_provider = 'llvmjit' # JIT implementation to use #------------------------------------------------------------------------------ # LOCK MANAGEMENT |