Re: [PATCH 3/6] mm: hugetlb_vmemmap: introduce the name HVO

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On Wed, Jun 15, 2022 at 03:51:51PM +0100, Joao Martins wrote:
> On 6/13/22 07:35, Muchun Song wrote:
> > It it inconvenient to mention the feature of optimizing vmemmap pages associated
> > with HugeTLB pages when communicating with others since there is no specific or
> > abbreviated name for it when it is first introduced.  Let us give it a name HVO
> > (HugeTLB Vmemmap Optimization) from now.
> > 
> 
> Just thought I would throw this suggestion, even though I am probably too late.
> 

Not too late, we are still discussing the name.

> I find the term "vmemmap deduplication" more self-explanatory (at least for me)
> to refer to your technique ,and similarly s/optimize/dedup. Or vmemmap tail page
> deduplication (too verbose maybe) because really that's what this optimization is all
> about. OTOH it would slightly deviate from what maybe established now
> in hugetlb code.
>

Well, I have looked up this word "deduplication" which refers to a method of
eliminating a dataset’s redundant data.  At least I agree with you "deduplication"
is more expressive for my technique.  So I am thinking of renaming "HVO" to "HVD (
HugeTLB Vmemmap Deduplication)".  In this series (patch 6), I have renamed
hugetlb_vmemmap_alloc/free to hugetlb_vmemmmap_optimize/restore.  I am also
thinking of replacing it to:

  hugetlb_vmemmmap_deduplicate vs hugetlb_vmemmmap_duplicate.

Many other places in hugetlb_vmemmap.c use "optimize" word, maybe most of them do
not need to be changed since "deduplication" is also a __optimization__ technique.

Hi Mike and David:

What your opinion on this? I want to hear some thoughts from you.

THanks.




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