Re: [Xen-devel] VMX status report. Xen: #17270 & Xen0: #488 -- n

To:	Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, "Li, Haicheng" <haicheng.li@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] VMX status report. Xen: #17270 & Xen0: #488 -- nonew issue
From:	Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date:	Wed, 26 Mar 2008 10:13:55 +0000
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On 26/3/08 10:00, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:

>> Keir, we checked guest installation with rhel4u3 today, we compared c/s
>> 17284 with c/s 16720,
>> The result shows latest c/s with mmio emulation changes is a little bit
>> faster than before on our test system with Xeon(r) processors, about 20
>> seconds faster.
> 
> That's pretty surprising! I found out that slowdown on my P4 system for
> WinXP installation is about 15%, so not as bad as I thought. And I can
> probably reclaim most of that performance loss.
> 
> I find it hard to explain a performance *win* though!

Actually, how long does the install take in total? 20 seconds is probably in
the noise.

 -- Keir



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