Re: [RFC][Patch v9 0/6] KVM: Guest Free Page Hinting

From: Michael S. Tsirkin
Date: Wed Mar 06 2019 - 13:38:22 EST

On Wed, Mar 06, 2019 at 01:30:14PM -0500, Nitesh Narayan Lal wrote:
> > Want to try testing Alex's patches for comparison?
> Somehow I am not in a favor of doing a hypercall on every page (with
> huge TLB order/MAX_ORDER -1) as I think it will be costly.
> I can try using Alex's host side logic instead of virtio.
> Let me know what you think?

I am just saying maybe your setup is misconfigured
that's why you see no speedup. If you try Alex's
patches and *don't* see speedup like he does, then
he might be able to help you figure out why.
OTOH if you do then *you* can try figuring out why
don't your patches help.