Re: [Xen-devel] [PATCH 4 of 4] xenpaging: initial libxl support

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Sun, 20 Nov 2011, Olaf Hering wrote:
> On Mon, Nov 07, Stefano Stabellini wrote:
> 
> > On Mon, 7 Nov 2011, Olaf Hering wrote:
> > > > If tot_memkb is the pod target of the domain, we should be coherent and
> > > > set it equal to target_memkb when paging is inactive.
> > > 
> > > So far PoD and paging are unrelated and mean different things.
> > > I think the difference between max_memkb and tot_memkb could be the
> > > trigger to start paging.
> > 
> > Yes, I think it would be better.
> 
> I have to disagree here.
> 
> After looking at the code in parse_config_data(), tot_memkb is only set
> if actmem= is listed in the configfile. And if actmem= is set, its the
> trigger to run xenpaging and let it work toward the specified number.
> So checking for a non-null tot_memkb in create_xenpaging() looks like
> the correct way to me to decide wether xenpaging should be started.

what if tot_memkb is bigger than target_memkb? Or even bigger than
max_memkb?

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