Re: [PATCH] docs/mm: Physical Memory: add example of interleaving nodes

From: Bagas Sanjaya
Date: Sat Feb 11 2023 - 07:31:29 EST


On 2/11/23 17:22, 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::
> +
> +
> + 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 Gbytes to 16 Gbytes.
> +

What about "... and node 1 will span from 4 to 16 Gbytes"?

--
An old man doll... just what I always wanted! - Clara