Questions tagged [jit]
Just-In-Time (JIT) compilation is a way of executing computer code that involves compilation during execution of a program – at run time – rather than prior to execution. Used in some database systems to accelerate performance.
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Postgres 13/14 JIT execution increase execution time of query considerably
I have a complex DB query that I run on different systems with identical specs, but different OS (CentOS7 vs. Debian 11). The Postgres version is 13.7, but I also tried with 14.4.
I get vastly ...
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pg_jit_available showing 'false' and jit not working, but config file seems set up properly
I am trying to turn on JIT for testing purposes on a Postgresql 12 server, it was off before.
My postgresql.conf has the following properties activated (basically all default values):
jit = on
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Handling performance problems with jit in postgres 12
tl;dr: What is the best way to handle performance decrease caused by jit?
Background:
Lately I have migrated from postgres 11 to 12 and noticed, that some queries / procedures run considerably ...
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Queries on large database kill connection to the server, works with LIMIT
I'm trying to run queries on a large-ish database without killing the connection to the server.
I'm using Postgres 12.1 on a mac with 16gb of memory, and about 40gb of free disk. The database is ...
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How to tell if Postgres was built with the option to include LLVM technology for JIT?
Postgres 11 gained the ability to perform Just-in-Time Compilation (JIT) based on LLVM technology.
The manual notes that this feature depends on Postgres having been built with the --with-llvm ...
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