Re: [PATCH RESEND 0/8] hugetlb: add demote/split page functionality

Andrew Morton
2021-08-16T23:27:54Z

Also, pushback...

On Mon, 16 Aug 2021 15:49:45 -0700 Mike Kravetz <mike.kravetz@oracle.com> wrote:

>
> Real world use cases
> --------------------
> There are groups today using hugetlb pages to back VMs on x86. Their
> use case is as described above. They have experienced the issues with
> performance and not necessarily getting the excepted number smaller huge

("number of")

> pages after free/allocate cycle.
>

It really is a ton of new code. I think we're owed much more detail
about the problem than the above. To be confident that all this
material is truly justified?

Also, some selftests and benchmarking code in tools/testing/selftests
would be helpful?