WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] Performances compare between PV domU & HVM domU & PV-on-HVM

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Performances compare between PV domU & HVM domU & PV-on-HVM domU
From: topperxin <topperxin@xxxxxxx>
Date: Wed, 22 Dec 2010 17:01:31 +0800 (CST)
Cc:
Delivery-date: Wed, 22 Dec 2010 01:02:36 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
hi all
    As we all know, xen currently support these three types domU mode, and every mode has it's own features, such as:
        Advantages                 Disadvantages
   PV:  Good I/O performance        Have to modify the domU kernel
        Hardware Independent        Can't support windows
   
HVM: no need to modify kernel    not good at I/O performance
        support various OS include  Hardware dependent(VT)  
        linux, windows      

PV-on-HVM: Optimize the I/O           Have to transplant the pv               performance with pv drivers   drivers between various kernel           support various OS include    versions
        linux, windows                              

        1.Are the compare right? Or where can I get the more detailed performance compare given by the government? Specially, what about I/O performance between PV & PV-on-HVM???
         2.When I choose domU mode, what conditions should I care for?
         3.Is PV can use VT hardware technology?
         4.In future, which modes will become the main direction?
        Any reply will be appreciated, thanks a lot.                             
        
                             


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
<Prev in Thread] Current Thread [Next in Thread>