From: | Tobias Gierke <tobias(dot)gierke(at)code-sourcery(dot)de> |
---|---|
To: | pgsql-performance(at)lists(dot)postgresql(dot)org |
Subject: | Re: Sv: JIT in PostgreSQL 12 ? |
Date: | 2019-05-29 09:13:10 |
Message-ID: | 463322dc-8b64-3595-7f48-3c513d81bd0a@code-sourcery.de |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-performance |
Hi,
> På onsdag 29. mai 2019 kl. 10:02:50, skrev Tobias Gierke
> <tobias(dot)gierke(at)code-sourcery(dot)de <mailto:tobias(dot)gierke(at)code-sourcery(dot)de>>:
>
> Hi,
>
> Browsing the PostgreSQL 12 release notes I noticed that JIT is now
> enabled by default. Having not followed PostgreSQL development
> closely -
> does this mean that compilation results are now getting cached and
> compilation is no longer executed separately for each worker
> thread in a
> parallel query ?
>
> I don't know, but just want to chime in with my experience with PG-12
> and JIT: Execution-time is still way worse then JIT=off for your
> queries so we'll turn JIT=off until we can mesure performance-gain.
Hm, that's a bummer. So I guess we'll also have to make sure JIT is
turned off when upgrading.
Thanks,
Tobias
From | Date | Subject | |
---|---|---|---|
Next Message | Andreas Joseph Krogh | 2019-05-29 09:16:06 | Re: Sv: JIT in PostgreSQL 12 ? |
Previous Message | Andreas Joseph Krogh | 2019-05-29 08:48:19 | Sv: JIT in PostgreSQL 12 ? |