linux-kernel - Re: [PATCH] Documentation/cgroup-v2: Update memory.numa_stat description to reflect possible units

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Message-ID: <a8d5ded2-6921-4c6b-890d-17227147c28d@redhat.com>
Date: Fri, 10 Jan 2025 10:26:40 -0500
From: Waiman Long <llong@...hat.com>
To: Li Zhijian <lizhijian@...itsu.com>, linux-doc@...r.kernel.org
Cc: Tejun Heo <tj@...nel.org>, Johannes Weiner <hannes@...xchg.org>,
 mkoutny@...e.com, Jonathan Corbet <corbet@....net>, cgroups@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Documentation/cgroup-v2: Update memory.numa_stat
 description to reflect possible units


On 1/10/25 7:30 AM, Li Zhijian wrote:
> The description of the memory.numa_stat file has been updated to clarify
> that the output values can be in bytes or pages. This change ensures that
> users are aware that the unit of measurement for memory values can vary
> and should be verified by consulting the memory.stat
>
> It's known that
> workingset_*, pgdemote_* and pgpromote_success are counted in pages
>
> Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
> ---
>   Documentation/admin-guide/cgroup-v2.rst | 9 +++++----
>   1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
> index 315ede811c9d..5d1d44547409 100644
> --- a/Documentation/admin-guide/cgroup-v2.rst
> +++ b/Documentation/admin-guide/cgroup-v2.rst
> @@ -1427,7 +1427,7 @@ The following nested keys are defined.
>   	types of memory, type-specific details, and other information
>   	on the state and past events of the memory management system.
>   
> -	All memory amounts are in bytes.
> +	All memory amounts are in bytes or bytes.

You mean "bytes or pages". Right?

Cheers,
Longman