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SubjectRe: [PATCH 1/4] Documentation: kernel-parameters: remove slab_max_order
On Mon, Nov 20, 2023 at 6:12 PM <sxwjean@me.com> wrote:
>
> From: Xiongwei Song <xiongwei.song@windriver.com>
>
> Since slab allocator has already been removed. There is no users about
> it, so remove it.
>
> Signed-off-by: Xiongwei Song <xiongwei.song@windriver.com>
> ---
> Documentation/admin-guide/kernel-parameters.txt | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 65731b060e3f..c7709a11f8ce 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -5887,12 +5887,6 @@
> own.
> For more information see Documentation/mm/slub.rst.
>
> - slab_max_order= [MM, SLAB]
> - Determines the maximum allowed order for slabs.
> - A high setting may cause OOMs due to memory
> - fragmentation. Defaults to 1 for systems with
> - more than 32MB of RAM, 0 otherwise.
> -

Good catch!

By the way I think noaliencache can be removed too in this patch together:
> noaliencache [MM, NUMA, SLAB] Disables the allocation of alien
> caches in the slab allocator. Saves per-node memory,
> but will impact performance.

Thanks,
Hyeonggon

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