From: ANASTACIO Tiago <tiago_anastacio@yahoo.fr>
To: andres@anarazel.de <andres@anarazel.de>
To: pgsql-performance@lists.postgresql.org <pgsql-performance@lists.postgresql.org>
Subject: JIT llvm11 package
Date: Thu, 4 Nov 2021 20:56:32 +0000 (UTC)
Message-ID: <190426807.1290718.1636059392618@mail.yahoo.com> (raw)
References: <190426807.1290718.1636059392618.ref@mail.yahoo.com>
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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To: pgsql-performance@postgresql.org
Cc: tiago_anastacio@yahoo.fr, andres@anarazel.de, pgsql-performance@lists.postgresql.org
Subject: Re: JIT llvm11 package
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