| From: | ANASTACIO Tiago <tiago_anastacio(at)yahoo(dot)fr> |
|---|---|
| To: | "andres(at)anarazel(dot)de" <andres(at)anarazel(dot)de>, "pgsql-performance(at)lists(dot)postgresql(dot)org" <pgsql-performance(at)lists(dot)postgresql(dot)org> |
| Subject: | JIT llvm11 package |
| Date: | 2021-11-04 20:56:32 |
| Message-ID: | 190426807.1290718.1636059392618@mail.yahoo.com |
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| Lists: | pgsql-performance |
Hi guys,
PostgreSQL 13.4 for SUSE linux (should be same behavior on red hat)_________________________________________________________
We installed the llvmJIT community RPM => postgresql13-llvmjit-13.4-1PGDG.sles15.x86_64.rpm
=> It requires libLLVM11 : https://opensuse.pkgs.org/15.3/opensuse-oss-aarch64/libLLVM11-11.0.1-1.26.x86_64.rpm.html
=> Also requires llvm11 : https://opensuse.pkgs.org/15.3/opensuse-oss-aarch64/llvm11-11.0.1-1.26.x86_64.rpm.html
For llvm11 we faced a security issue for installation in production because this lib (llvm11) seems to be a kind of compiler.
So we installed *only* libLLVM11 (not llvm11) and tried the example test in JIT documentation : https://www.postgresql.org/docs/11/jit-decision.html
it works...
=> Could you please confirm if this library is really needed: 'llvm11' or we can live only with 'libLLVM11' library installed and using PostgreSQL JIT feature
*without* any penalty on performances ?
Thank you very much
Best regards
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