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Re: Is there a significant difference in Memory settings between 9.5 and 12

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Subject: Re: Is there a significant difference in Memory settings between 9.5 and 12
From: "David G. Johnston" <david.g.johnston@xxxxxxxxx>
Date: Mon, 11 May 2020 23:09:03 -0700
Cc: Thomas Munro <thomas.munro@xxxxxxxxx>, "pgsql-generallists.postgresql.org" <pgsql-general@xxxxxxxxxxxxxxxxxxxx>
In-reply-to: <CAKFQuwadKye7DgAjJgdOSP+xJoKC-0tcj_tQWugTF246++NiuA@mail.gmail.com>
References: <CAEaSS0a5Bi7swvgWxcLk1kBHwRjmS0KMeU5Qs-LckECDbtOWaA@mail.gmail.com> <7b3633eee48f14c11677ad445b9bf2b9ac7aaf72.camel@cybertec.at> <CAEaSS0ZCV4tWv1=rybjgxky55BuUKMh2M9BDAbe9RgbS+_-jfA@mail.gmail.com> <CAEaSS0aewdAM5REvG7+5vPWGbxYfCq4KvbUsG6CBjX+0gA8y=A@mail.gmail.com> <30855.1589229387@sss.pgh.pa.us> <CAEaSS0aRfAjgbkLYnM4Wfjgz0A1zvG4e6DjbFNYSBDV5q0fnpg@mail.gmail.com> <CAEaSS0Z_+BHVVuOs9ogcJBNhXTx96B6HvTuL1_cBR+QEAH9PoA@mail.gmail.com> <CA+hUKGJYg4=qHy0dqU6JtMqyzPG4B2PqTUS3F652ZRGL1D1YWA@mail.gmail.com> <CAEaSS0b5gSQXq-vV0RFEpfzzB4swKT=8FqS8PF7duaRtAxq3Og@mail.gmail.com> <CAKFQuwadKye7DgAjJgdOSP+xJoKC-0tcj_tQWugTF246++NiuA@mail.gmail.com>

On Monday, May 11, 2020, David G. Johnston <david.g.johnston@xxxxxxxxx> wrote:

Repost, edited subject by mistake...

On Monday, May 11, 2020, Tory M Blue <tmblue@xxxxxxxxx> wrote:
And just to repeat. Same exact hardware, same kernel, nothing more than installing the latest postgres12, copying my config files from 9.5 to 12 and running the pg_upgrade.

You’ll want to remove the pg_upgrade from the equation and try v12

Sorry...if you copied the config to v12 before the upgrade and the upgrade worked that suggests that v12 booted up at some point with the configuration, no? Does pg_upgrade do something special?

David J.

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