From: Gleb Natapov <gleb@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: walt <w41ter@gmail.com>, Gerd Hoffmann <kraxel@redhat.com>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Re: qemu-kvm faster than qemu?
Date: Thu, 26 Aug 2010 15:57:51 +0300 [thread overview]
Message-ID: <20100826125751.GT10499@redhat.com> (raw)
In-Reply-To: <4C766402.2080804@codemonkey.ws>
On Thu, Aug 26, 2010 at 07:54:26AM -0500, Anthony Liguori wrote:
> On 08/26/2010 02:59 AM, Gleb Natapov wrote:
> >On Thu, Aug 26, 2010 at 09:53:27AM +0200, Gerd Hoffmann wrote:
> >> Hi,
> >>
> >>>Also try qemu-kvm with -no-kvm-irqchip. I can't believe an in-kernel
> >>>lapic would make this much of a difference with windows 7 but it's worth
> >>>trying.
> >>Didn't try win7, but for winxp it is a *huge* difference.
> >>
> >On which HW? My guess is this is because of tpr patching.
>
> Does Windows 7 hit the TPR heavily? I thought all modern versions
> of Windows significantly reduced their interactions with the TPR.
>
Windows 7 doesn't. tpr patching explains only winxp slowdown.
--
Gleb.
next prev parent reply other threads:[~2010-08-26 12:57 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
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 [this message]
2010-08-26 21:57 ` walt
2010-08-29 15:02 ` Avi Kivity
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