Re: [RFC][Patch v8 0/7] KVM: Guest Free Page Hinting

From: Michael S. Tsirkin
Date: Mon Feb 18 2019 - 13:01:47 EST


On Mon, Feb 18, 2019 at 09:31:13AM -0800, Alexander Duyck wrote:
> > Optimization of space comes with a price (here: execution time).
>
> One thing to keep in mind though is that if you are already having to
> pull pages in and out of swap on the host in order be able to provide
> enough memory for the guests the free page hinting should be a
> significant win in terms of performance.

Absolutely and I think that's the point of the hinting right?
To cut out swap/IO on the host.

--
MST