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Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory sem
From: |
Avi Kivity |
Subject: |
Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics? |
Date: |
Wed, 25 Jan 2012 13:38:54 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20111222 Thunderbird/9.0 |
On 01/19/2012 07:39 PM, Jan Kiszka wrote:
> On 2012-01-19 18:28, Marcelo Tosatti wrote:
> > On Thu, Jan 19, 2012 at 01:46:39PM +0100, Jan Kiszka wrote:
> >> Hi again,
> >>
> >> do we need some KVM knob comparable to qemu-kvm's -kvm-shadow-memory in
> >> upstream?
> >>
> >> If yes: The underlying IOCTL is x86-only. Are other archs interested in
> >> this long-term as well, ie. should the control become arch-independent?
> >>
> >> Jan
> >
> > Last time i asked about removal, Avi wished for it to remain.
> >
>
> Then I guess he should comment on this after returning to work. :)
-kvm-shadow-memory is becoming less meaningful for ordinary workloads
since everything uses TDP these days. It's still meaningful for testing
(forcing aggressive cache replacement), or perhaps nested virtualization.
--
error compiling committee.c: too many arguments to function
- [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Jan Kiszka, 2012/01/19
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Alexander Graf, 2012/01/19
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Marcelo Tosatti, 2012/01/19
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Jan Kiszka, 2012/01/19
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?,
Avi Kivity <=
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Jan Kiszka, 2012/01/25
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Avi Kivity, 2012/01/25
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Jan Kiszka, 2012/01/25
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Avi Kivity, 2012/01/25
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Jan Kiszka, 2012/01/25
- Re: [Qemu-devel] qemu-kvm upstreaming: Do we want -kvm-shadow-memory semantics?, Avi Kivity, 2012/01/25