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From: DINESH  NAIR <[email protected]>
To: Pär Mattsson <[email protected]>
To: Scott Ribe <[email protected]>
Cc: pgsql-admin <[email protected]>
Subject: Re: PGbackrest very slow!
Date: Fri, 24 Oct 2025 02:15:22 +0000
Message-ID: <PN4P287MB43814D3FD9032859913C6A9A9CF1A@PN4P287MB4381.INDP287.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <AM0PR03MB555691074192002C7FF4681BA2F0A@AM0PR03MB5556.eurprd03.prod.outlook.com>
References: <CAE9Bupympsqn=7emjt6T5ug6dg1yKKsBRTx9Venf2cZWULZQtw@mail.gmail.com>
	<[email protected]>
	<AM0PR03MB555691074192002C7FF4681BA2F0A@AM0PR03MB5556.eurprd03.prod.outlook.com>

Hi,

Kindly try changing below mentioned parameters.



Parallel-process=      -- based on the CPU CORE
compress-type=lz4
compress-level=       -- based on the CPU CORE



Thanks & Regards

Dinesh Nair

________________________________
From: Pär Mattsson <[email protected]>
Sent: Thursday, October 23, 2025 7:21 PM
To: Scott Ribe <[email protected]>
Cc: pgsql-admin <[email protected]>
Subject: Re: PGbackrest very slow!

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Thanks I will test that!
Br Pär

Mvh Pär
________________________________
Från: Scott Ribe <[email protected]>
Skickat: Thursday, October 23, 2025 3:14:20 PM
Till: Pär Mattsson <[email protected]>
Kopia: pgsql-admin <[email protected]>
Ämne: Re: PGbackrest very slow!

> On Oct 23, 2025, at 2:59 AM, Pär Mattsson <[email protected]> wrote:
>
> ...
> The backup of 50GB took 40 min.
> It is not a network issue. I tested to transfer 2GB between two host and it took 4 sec.
>
> I think backup-standby=y slows down the backup out of all minds.
>
> Br Pär

pgbackrest defaults to gzip compression, which is slow--try lz4 and see what happens

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