On Fri, 01 Nov 2024 13:14:36 -0700, Vipin Sharma wrote:
> Based on the feedback from v2, this patch is now completely removing KVM MMU
> shrinker whereas earlier versions were repurposing KVM MMU shrinker
> behavior to shrink vCPU caches. Now, there is no change to vCPU caches
> behavior.
>
> KVM MMU shrinker is not very effective in alleviating pain during memory
> pressure. It frees up the pages actively being used which results in VM
> degradation. VM will take fault and bring them again in page tables.
> More discussions happened at [1]. Overall, consensus was to reprupose it
> into the code which frees pages from KVM MMU page caches.
>
> [...]
Applied to kvm-x86 mmu, with the massaging and splitting. Definitely feel free
to propose changes/object. I wanted to get this queued asap to get coverage in
-next, but I don't anticipate any more MMU commits, i.e. I can fix these up
without too much fuss. Thanks!
[1/2] KVM: x86/mmu: Remove KVM's MMU shrinker
https://github.com/kvm-x86/linux/commit/fe140e611d34
[2/2] KVM: x86/mmu: Drop per-VM zapped_obsolete_pages list
https://github.com/kvm-x86/linux/commit/4cf20d42543c
--
https://github.com/kvm-x86/linux/tree/next
