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Re: [Qemu-devel] [Qemu-discuss] The difference between qemu-kvm-1.2.0 &
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From: |
Fam Zheng |
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Subject: |
Re: [Qemu-devel] [Qemu-discuss] The difference between qemu-kvm-1.2.0 & qemu-1.5.1 |
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Date: |
Tue, 23 Jul 2013 08:43:20 +0800 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Mon, 07/22 13:51, Yaodong Yang wrote:
> Hi everyone,
>
> Previously, I used the qemu-kvm-1.2.0 from
> (http://www.linux-kvm.org/page/Downloads), and it worked well in my ubuntu
> server. Later, I found that some of the implementation(qemu-kvm-1.2.0) is out
> of date, so that I changed to qemu-1.5.1 (http://wiki.qemu.org/Download). I
> found that installing a guest ubuntu vm (qcow2 backup images) in qemu-1.5.1
> is much slower than that in qemu-kvm-1.2.0.
>
> So could someone tell me the differences between them? particularly why the
> qemu-1.5.1 is slower than the qemu-kvm-1.2.0.
>
> I would like to implement something in the io path. My platform is a x86
> 64bit server, and my host os is ubuntu 12.04 desktop, 64 bits.
>
Are you using KVM? If not, please use --enable-kvm to compile QEMU with
kvm support and run with '-enable-kvm'.
What's your command to run it?
--
Fam