Re: [PATCH 6/6] mm: split underutilized THPs

[Randy Dunlap <rdunlap@infradead.org>]

On 7/30/24 5:46 AM, Usama Arif wrote:
> diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst
> index 058485daf186..24eec1c03ad8 100644
> --- a/Documentation/admin-guide/mm/transhuge.rst
> +++ b/Documentation/admin-guide/mm/transhuge.rst
> @@ -447,6 +447,12 @@ thp_deferred_split_page
>  	splitting it would free up some memory. Pages on split queue are
>  	going to be split under memory pressure.
>  
> +thp_underutilized_split_page
> +	is incremented when a huge page on the split queue was split
> +	because it was underutilized. A THP is underutilized if the
> +	number of zero pages in the THP are above a certain threshold

	                     in the THP is above

(if the number ... is)

> +	(/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none).
> +

-- 
~Randy