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help / color / mirror / Atom feedFrom: Christophe Pettus <[email protected]>
To: Johnathan Tiamoh <[email protected]>
Cc: pgsql-generallists.postgresql.org <[email protected]>
Subject: Re: Performance degradation after upgrading from 9.5 to 14
Date: Wed, 17 Apr 2024 10:28:48 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <CACoPQdb02ePEEdxGifTWWypke10tao_tKBmwi+7tu7KVkPdDuA@mail.gmail.com>
References: <CACoPQdb02ePEEdxGifTWWypke10tao_tKBmwi+7tu7KVkPdDuA@mail.gmail.com>
> On Apr 17, 2024, at 10:13, Johnathan Tiamoh <[email protected]> wrote:
> I performed an upgrade from postgresql-9.5 to postgresql-14 and the performance has degraded drastically.
>
> Please, is they any advice on getting performance back ?
Run:
VACUUM (ANALYZE, VERBOSE);
More seriously (although make sure you did do that), "performance" is made up of a lot of components. There's no "go faster" switch in postgresql.conf you may have neglected. You'll need to do a bit of investigation first to find out what is running slow, where it should be fast: I/O performance? Query times? Once you have that information, the community can provide much more assistance.
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