Xen users - Sep 2007 - shared cpu resources

Hi all!
I have a doubt about shared resources:

If I have a Dom-0 and two virtual machines Dom1 and Dom2, how can I split
cpu resources? I mean how can I assign exactly 25% of cpu to Dom1 and 75% of
cpu to Dom1? (I assume that Dom-0 uses 0% of cpu).

Can I also choose which is the virtual machine I assign the disk I/O speed?

Thanks very much!

Marco


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Hi all!
I have a doubt about shared resources:

If I have a Dom-0 and two virtual machines Dom1 and Dom2, how can I split
cpu resources? I mean how can I assign exactly 25% of cpu to Dom1 and 75% of
cpu to Dom1? (I assume that Dom-0 uses 0% of cpu).

Can I also choose which is the virtual machine I assign the disk I/O speed?

Thanks very much!

Marco


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Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

I would recommend to have a look at chapter "4.2.2 Domain Scheduling
Management Commands" of the Xen user manual
(http://www.cl.cam.ac.uk/research/srg/netos/xen/readmes/user/user.html).


If you use the standard Xen scheduler, you can limit the maximum amount
of CPU a guest is allowed to use with the "xm sched-credit -d
<domain>
-c <cap>" command. So you could restrict a domain to only use 25%/75%
of
the CPU. You can as well use other Xen schedulers to eventually optimize
CPU utilization.


________________________________

	From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Marco
Strullato
	Sent: 20 September 2007 07:43
	To: xen-users@lists.xensource.com
	Subject: [Xen-users] shared cpu resources
	
	
	Hi all!
	I have a doubt about shared resources:
	
	If I have a Dom-0 and two virtual machines Dom1 and Dom2, how
can I split cpu resources? I mean how can I assign exactly 25% of cpu to
Dom1 and 75% of cpu to Dom1? (I assume that Dom-0 uses 0% of cpu). 
	
	Can I also choose which is the virtual machine I assign the disk
I/O speed?
	
	Thanks very much!
	
	Marco
	
	
	


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Xen-users@lists.xensource.com
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