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Re: [Qemu-devel] [QEMU 3/7] Add the hmp and qmp interface for dropping c

From: Li, Liang Z
Subject: Re: [Qemu-devel] [QEMU 3/7] Add the hmp and qmp interface for dropping cache
Date: Mon, 13 Jun 2016 14:14:31 +0000

> On 13/06/2016 12:50, Daniel P. Berrange wrote:
> > More generally, it feels like this is taking as down a path towards
> > actively managing the guest kernel VM from the host. Is this really a
> > path we want to be going down, given that its going to take us into
> > increasing non-portable concepts which are potentially different for
> > each guest OS kernel.  Is this drop caches feature at all applicable
> > to Windows, OS-X, *BSD guest OS impls of the balloon driver ? If it is
> > applicable, are the 3 fixed constants you've defined at all useful to
> > those other OS ?
> >
> > I'm warying of us taking a design path which is so Linux specific it
> > isn't useful elsewhere. IOW, just because we can do this, doesn't mean
> > we should do this...
> I agree.  And if anything, this should be handled through the guest agent.
> Paolo

Guest agent is a good choice. Thanks!


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