From: Fam Zheng <famz@redhat.com>
To: Yaodong Yang <yaodong.yangy@icloud.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"qemu-discuss@nongnu.org" <qemu-discuss@nongnu.org>
Subject: Re: [Qemu-devel] [Qemu-discuss] The difference between qemu-kvm-1.2.0 & qemu-1.5.1
Date: Tue, 23 Jul 2013 08:43:20 +0800 [thread overview]
Message-ID: <20130723004320.GA15988@T430s.redhat.com> (raw)
In-Reply-To: <A0EE04CE-6C47-487C-AB9D-A342FC50B1DD@icloud.com>
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 Later, I found that some of the implementation(qemu-kvm-1.2.0) is out of date, so that I changed to qemu-1.5.1 (http://wiki.qemu.org/Download).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
prev parent reply other threads:[~2013-07-23 0:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-09 4:15 [Qemu-devel] Questions about Block subsystem in QEMU Yaodong Yang
2013-07-15 3:46 ` Stefan Hajnoczi
2013-07-22 18:51 ` [Qemu-devel] The difference between qemu-kvm-1.2.0 & qemu-1.5.1 Yaodong Yang
2013-07-23 0:43 ` Fam Zheng [this message]
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