Re: [RESEND PATCH v7 00/10] Small-sized THP for anonymous memory

[Matthew Wilcox]

On Mon, Nov 27, 2023 at 07:20:26PM +1100, Alistair Popple wrote:
> I don't like "large anon folios" because it seems to confuse collegaues
> when explaining that large anon folios are actually smaller than the
> existing Hugetlb/THP size. I suspect this is because they already assume
> large folios are used for THP. I guess this wouldn't be an issue if
> everyone assumed THP was implemented with huge folios, but that doesn't
> seem to be the case for me at least. Likely because the default THP size
> is often 2MB, which is hardly huge.

I find your colleagues confusing.  To me, "huge" seems bigger than
"large".  I don't seem to be the only one:

https://www.quora.com/What-is-the-difference-among-big-large-huge-enormous-and-giant
(for example)

Perhaps the problem is that people have turned "THP" into a thing in its
own right.  So they feel comfortable talking about small THP, medium THP
and large THP and ignoring that there's already a "huge" embedded in THP.

Now if you'll excuse me, I have to put my PIN number into the ATM machine.