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From: Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
To: Andreas Hasenack <ahasenack-y7mWNqJcIDpfJ/NunPodnw@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: XP installation speed: KVM vs Xen
Date: Tue, 27 Feb 2007 18:06:36 -0600	[thread overview]
Message-ID: <45E4C78C.7050604@codemonkey.ws> (raw)
In-Reply-To: <200702272105.18311.ahasenack-y7mWNqJcIDpfJ/NunPodnw@public.gmane.org>

Andreas Hasenack wrote:
> On Tuesday 27 February 2007 17:46:45 Andrew Olney wrote:
>   
>> I've been migrating from Xen to KVM for a wide variety of reasons.
>>
>> I've noticed, however, that XP installs much much faster with Xen (3.03
>> xen-image-xen0-2.6.17-6-generic-xen0 ubuntu) than with KVM (14).
>>
>> I haven't clocked it, but for KVM it takes longer than realtime (by the
>> XP install clock) and with Xen it takes less than realtime.
>>
>> I assume that this is all file I/O related, which raises the question:
>> what file system setup optimizes KVM I/O, e.g. qcow vs. raw?
>>     
>
> I experienced very slow graphic performance with kvm, could that be related 
> too?
>
> For example, graphic grub boot splash is very slow, as is any form of frame 
> buffer boot in linux.
>   

Graphic grub boot is different from the rest of graphics and should not 
be any worse than Xen.

Regards,

Anthony Liguori

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  parent reply	other threads:[~2007-02-28  0:06 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-27 20:46 XP installation speed: KVM vs Xen Andrew Olney
     [not found] ` <1172609205.6539.9.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-02-28  0:05   ` Andreas Hasenack
     [not found]     ` <200702272105.18311.ahasenack-y7mWNqJcIDpfJ/NunPodnw@public.gmane.org>
2007-02-28  0:06       ` Anthony Liguori [this message]
2007-02-28  0:09   ` Anthony Liguori
2007-02-28  7:02   ` Avi Kivity
2007-02-28  7:10   ` Avi Kivity
     [not found]     ` <45E52AEE.6030107-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-02-28 16:16       ` Andrew Olney
     [not found]         ` <1172679377.5261.38.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-02-28 16:40           ` Avi Kivity
     [not found]             ` <45E5B07A.3040700-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-02-28 18:10               ` Andrew Olney

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