From: Ron <ronljohnsonjr@gmail.com>
To: pgsql-admin@lists.postgresql.org
Subject: Re: Sanity check of shared_buffers value
Date: Mon, 3 Jul 2023 14:56:12 -0500
Message-ID: <4b1c1747-85ff-f174-a43b-482e580fe6a2@gmail.com> (raw)
In-Reply-To: <CAOC+FBXnpq7+rGxw2D7=YaOi_RAfA3aBqNPNdtcTeXudfa-c_A@mail.gmail.com>
References: <CAOC+FBXnpq7+rGxw2D7=YaOi_RAfA3aBqNPNdtcTeXudfa-c_A@mail.gmail.com>
On 7/3/23 14:45, Wells Oliver wrote:
> Sorry, this is dumb, but I wanted to double check that I'm doing the
> shared_buffers calc correctly given it's in 8kb blocks (block_size is set
> to 8192).
>
> Want 24GB, which I think is 25165824 KiB so divided by 8 we get 3145728.
>
> Do I have this correct? Usually can test these but wanted to run it by
> someone before having to restart the server.
>
> Is there some calc web service out there that idiots such as myself can
> use for this?
https://www.postgresql.org/docs/15/runtime-config-resource.html
"If this value is specified *without **units*, it is taken as blocks,"
My interpretation of this (and what I do in my postgresql.conf file, without
error) is to use a unit name, as such:
shared_buffers = 24GB
--
Born in Arizona, moved to Babylonia.
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Subject: Re: Sanity check of shared_buffers value
In-Reply-To: <4b1c1747-85ff-f174-a43b-482e580fe6a2@gmail.com>
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