linux-kernel - Re: [PATCH v11 00/15] khugepaged: mTHP support

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Message-ID: <155c821d-402c-4627-a723-6f8c88a2f65c@lucifer.local>
Date: Mon, 15 Sep 2025 11:43:26 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: David Hildenbrand <david@...hat.com>
Cc: Kiryl Shutsemau <kas@...nel.org>, Nico Pache <npache@...hat.com>,
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Subject: Re: [PATCH v11 00/15] khugepaged: mTHP support

On Mon, Sep 15, 2025 at 12:22:07PM +0200, David Hildenbrand wrote:
>
> 0 -> ~100% used (~0% none)
> 1 -> ~50% used (~50% none)
> 2 -> ~25% used (~75% none)
> 3 -> ~12.5% used (~87.5% none)
> 4 -> ~11.25% used (~88,75% none)
> ...
> 10 -> ~0% used (~100% none)

Oh and shouldn't this be inverted?

0 eagerness = we eat up all none PTE entries? Isn't that pretty eager? :P
10 eagerness = we aren't eager to eat up none PTE entries at all?

Or am I being dumb here?