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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 14:04:26 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20111222 Thunderbird/9.0 |
On 01/25/2012 01:57 PM, Jan Kiszka wrote:
> >
> > -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.
>
> So, is it used for testing in fact?
It is not, but it should be. There's an extra_params option in
autotest, I'll start using it to stress the mmu some more, even though
it's going to slow things down for me.
> Would a machine option
> "kvm_shadow_memory=n" be desirable?
Not sure, this is a host option, not a guest option. Machine options
should be guest-visible.
--
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, 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 <=
- 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