linux-kernel - Re: [PATCH v2] docs/mm: Physical Memory: add example of interleaving nodes

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Date:   Sun, 12 Feb 2023 11:50:08 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     Jonathan Corbet <corbet@....net>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        David Hildenbrand <david@...hat.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Lorenzo Stoakes <lstoakes@...il.com>,
        Mel Gorman <mgorman@...e.de>, Michal Hocko <mhocko@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v2] docs/mm: Physical Memory: add example of interleaving
 nodes

On Sun, Feb 12, 2023 at 11:54:45AM +0200, Mike Rapoport wrote:
> +Note, that memory banks may belong to interleaving nodes. In the example
> +below an x86 machine has 16Gbytes or RAM in 4 memory banks, even banks
> +belong to node 0 and odd banks belong to node 1::

s/or RAM/of RAM/

The "Note," is superfluous, you can just write:

Memory banks may belong to interleaved nodes.

And I think we prefer the newer form "GiB" for new documentation.

> +
> +  0              4G              8G             12G            16G
> +  +-------------+ +-------------+ +-------------+ +-------------+
> +  |    node 0   | |    node 1   | |    node 0   | |    node 1   |
> +  +-------------+ +-------------+ +-------------+ +-------------+
> +
> +  0   16M      4G
> +  +-----+-------+ +-------------+ +-------------+ +-------------+
> +  | DMA | DMA32 | |    NORMAL   | |    NORMAL   | |    NORMAL   |
> +  +-----+-------+ +-------------+ +-------------+ +-------------+
> +
> +In such case node 0 will span from 0 to 12 Gbytes and node 1 will span from
> +4 to 16 Gbytes.

s/such/this/ (and I'd use GiB again)