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From: Alexandru Lazarev <[email protected]>
To: kaido vaikla <[email protected]>
To: [email protected]
Subject: Re: Is pg_basebackup Performance Limited by Files Page Cache?
Date: Wed, 26 Mar 2025 23:17:00 +0200
Message-ID: <CAL93h0EOvoXQjJAzRqEYZKjEyrMVg9wuKEx6GGShUmGKn0Q3BA@mail.gmail.com> (raw)
In-Reply-To: <CA+427g8buj=VMhwXS1B_sipXoxBqVpRnSHto5xsmA5QRMu=_0Q@mail.gmail.com>
References: <CAL93h0EAX7JgAtpQPkXCGzNfzU5x6-M7xYi_mZSO_DEgg2QJkA@mail.gmail.com>
	<CA+427g8buj=VMhwXS1B_sipXoxBqVpRnSHto5xsmA5QRMu=_0Q@mail.gmail.com>

In my case culprit is Linux Kernel (Oracle Linux 9.2: RHCK 5.14 - issue
exists, after switched to UEK 5.15 Kernel issue disappears).
I did various tests with PG container and rsync too and even out of
container (launched rsync into a CgroupV2).

So now I guess it is a question to Linux Kernel communities in my case.
More details: https://www.reddit.com/r/linuxquestions/s/ADScolw76C

AlexL


On Wed, Mar 26, 2025, 21:16 kaido vaikla <[email protected]> wrote:

> Hi,
> Did you get any feedback?
> I have suspected something similar.
>
> br
> Kaido
>


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