Re: [PATCH mm-unstable v2 0/3] mm/hugetlb: alloc/free gigantic folios

[jane . chu]

On 8/13/2024 8:54 PM, Yu Zhao wrote:

> Use __GFP_COMP for gigantic folios can greatly reduce not only the
> amount of code but also the allocation and free time.
>
> Approximate LOC to mm/hugetlb.c: +60, -240
>
> Allocate and free 500 1GB hugeTLB memory without HVO by:

Do you also have numbers with HVO enabled ?

>    time echo 500 >/sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages
>    time echo 0 >/sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages
>
>         Before  After
> Alloc  ~13s    ~10s
> Free   ~15s    <1s
Thanks,

-jane