From: Anthony Liguori <anthony@codemonkey.ws>
To: walt <w41ter@gmail.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] qemu-kvm faster that qemu?
Date: Wed, 25 Aug 2010 14:48:50 -0500 [thread overview]
Message-ID: <4C7573A2.8030708@codemonkey.ws> (raw)
In-Reply-To: <i53ren$56d$1@dough.gmane.org>
On 08/25/2010 02:37 PM, walt wrote:
> Hi qemu team,
>
> I just discovered that qemu now offers kvm support, so I decided to
> compare it to qemu-kvm.
>
> I'm running the latest git versions of both programs on an AMD64
> host running the latest kernel from Linus.git.
>
> The guest is Windows 7 on a qcow2 disk image and one kvm64 cpu.
>
> Using the same qcow2 image for both qemu and qemu-kvm, I find that
> qemu-kvm boots to the Win7 login prompt in 25 seconds, but qemu
> with kvm enabled takes about 45 seconds.
make sure you build qemu with --enable-io-thread. Also, what's your
full command line?
Regards,
Anthony Liguori
>
> Is this an expected outcome, or must I be doing something wrong
> with qemu?
>
> BTW, I tried reverting the qcow2 patch being discussed in another
> thread but it made no difference. Perhaps there's not much writing
> to disk during bootup?
>
> Thanks!
>
>
>
>
>
next prev parent reply other threads:[~2010-08-25 19:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-25 19:37 [Qemu-devel] qemu-kvm faster that qemu? walt
2010-08-25 19:48 ` Anthony Liguori [this message]
2010-08-25 23:09 ` [Qemu-devel] Re: qemu-kvm faster than qemu? walt
2010-08-25 23:28 ` Anthony Liguori
2010-08-26 7:53 ` Gerd Hoffmann
2010-08-26 7:59 ` Gleb Natapov
2010-08-26 9:59 ` Gerd Hoffmann
2010-08-26 10:24 ` Alexander Graf
2010-08-26 10:25 ` Gleb Natapov
2010-08-26 11:56 ` Avi Kivity
2010-08-26 12:54 ` Anthony Liguori
2010-08-26 12:57 ` Gleb Natapov
2010-08-26 21:57 ` walt
2010-08-29 15:02 ` Avi Kivity
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