On Tue, 2022-11-29 at 19:09 +0100, Alvaro Herrera wrote: > On 2022-Nov-29, Mladen Gogala wrote: > > > Hmmm, I think I will run pgbench with and without JIT on and see > > the > > difference. > > I doubt you'll notice anything, because the pgbench queries will be > far > below the JIT cost, so nothing will get JIT compiled at all. Or are > you > planning on using a custom set of queries? >
Nope. I am planning to set jit_above_cost parameter to 5. That should take care of the pgbench problem. Other than that, you're right: JIT should not be used for OLTP. However, pure OLTP or DW databases are a rarity these days. Reporting is a crucial function and almost every OLTP database that I've seen also has reporting function, which means that there are complex queries to be executed. -- Mladen Gogala Database Consultant https://dbwhisperer.wordpress.com
