Re: [PATCH v5 0/3] mm: ZSWAP swap-out of mTHP folios

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On Thu, Aug 29, 2024 at 4:48 PM Nhat Pham <nphamcs@xxxxxxxxx> wrote:
>
> On Thu, Aug 29, 2024 at 4:39 PM Yosry Ahmed <yosryahmed@xxxxxxxxxx> wrote:
> >
> > Interesting. If CONFIG_THP_SWAP is enabled this basically means your
> > zswap utilization keeps going down as your THP utilization goes up. So
> > the swapin cost would go higher. How do you deal with that?
>
> Johannes definitely knows more than me about this, so please fact
> check me. But my understanding is we don't get enough THP for this to
> become a problem just yet :)
>
> But yes, we're working hard to make THP become more readily available.
> Which will lead to the problem you're describing, hence my enthusiasm
> in this work :)

Adding Shakeel here as well as I am sure he's familiar with the
problem I was talking about.





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