From: Sasha Levin <levinsasha928@gmail.com>
To: Avi Kivity <avi@redhat.com>
Cc: mtosatti@redhat.com, gregkh@linuxfoundation.org,
sjenning@linux.vnet.ibm.com, dan.magenheimer@oracle.com,
konrad.wilk@oracle.com, kvm@vger.kernel.org
Subject: Re: [RFC 01/10] KVM: reintroduce hc_gpa
Date: Wed, 06 Jun 2012 14:32:04 +0200 [thread overview]
Message-ID: <1338985924.3292.68.camel@lappy> (raw)
In-Reply-To: <4FCF49DF.5060004@redhat.com>
On Wed, 2012-06-06 at 15:15 +0300, Avi Kivity wrote:
> On 06/06/2012 02:45 PM, Sasha Levin wrote:
> > On Wed, 2012-06-06 at 14:38 +0300, Avi Kivity wrote:
> >> On 06/06/2012 02:32 PM, Sasha Levin wrote:
> >> >
> >> >> and benchmark results.
> >> >
> >> > Is there a specific test you'd like to see? My tests were based around
> >> > the "streaming test" you proposed last time this discussion came up, and
> >> > runs of 'fio' in guests.
> >>
> >> Those are fine, thanks.
> >>
> >> btw, IIUC, a guest can have two tmem providers: the hypervisor and
> >> zcache. How does it choose?
> >
> > The guest will try to use the hypervisor, unless:
> >
> > - 'nokvmcleancache' is passed as param - in that case cleancache will
> > use the local zcache provider.
> >
> > - 'nokvmfrontswap' is passed as param - in that case frontswap will use
> > the local zcache provider.
>
> The guest may have more memory than free host memory, and its memory is
> certainly faster; but I'm not sure how to integrate this better.
Won't the free guest memory be exhausted first by regular local caching
before cleancache springs into action?
next prev parent reply other threads:[~2012-06-06 12:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-06 11:00 [RFC 01/10] KVM: reintroduce hc_gpa Sasha Levin
2012-06-06 11:00 ` [RFC 02/10] KVM: wire up the TMEM HC Sasha Levin
2012-06-06 11:00 ` [RFC 03/10] zcache: export zcache interface Sasha Levin
2012-06-06 11:00 ` [RFC 04/10] KVM: add KVM TMEM entries in the appropriate config menu entry Sasha Levin
2012-06-06 11:00 ` [RFC 05/10] KVM: bring in general tmem definitions Sasha Levin
2012-06-06 11:00 ` [RFC 06/10] zcache: move out client declaration and add a KVM client Sasha Levin
2012-06-06 11:00 ` [RFC 07/10] KVM: add KVM TMEM host side interface Sasha Levin
2012-06-29 1:59 ` Konrad Rzeszutek Wilk
2012-06-06 11:00 ` [RFC 08/10] KVM: add KVM TMEM guest support Sasha Levin
2012-06-06 11:00 ` [RFC 09/10] KVM: support guest side cleancache Sasha Levin
2012-06-06 11:00 ` [RFC 10/10] KVM: support guest side frontswap Sasha Levin
2012-06-06 11:06 ` [RFC 01/10] KVM: reintroduce hc_gpa Avi Kivity
2012-06-06 11:32 ` Sasha Levin
2012-06-06 11:38 ` Avi Kivity
2012-06-06 11:45 ` Sasha Levin
2012-06-06 12:15 ` Avi Kivity
2012-06-06 12:32 ` Sasha Levin [this message]
2012-06-06 12:37 ` Avi Kivity
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