RE: [Xen-users] How set up CPU time

["Nitesh Gangarde, Noida" <nitesh.g@xxxxxx>]

HI


Yes you can restrict the virtual machine to use the % of cpu. This can
be done through 
Suppose you have a 2 virtual machine in your system. So you can give a 
Weight in such a ratio so that one virtual machine can use 20% cpu.
For ex:
Suppose you have provided the domain0 a weight 1
Command for giving the weight is:  xm sched-sedf <domain id> -e 0 -w 1
Vm01 ---virtual machine 1 ---> weight 2
Command for giving the weight is:  xm sched-sedf <domain id> -e 0 -w 2
Vm02 ---virtual machine 2 ---> weight 3
Command for giving the weight is:  xm sched-sedf <domain id> -e 0 -w 3

And set the extra time option in xm sched-sedf to 0.

Now se all the virtual machine will use cpu in this propotion only.
1:2:3 = 16.5%:33%:51%
Means domain0 will use only 16.5% cpu
Vm01 use only 33% cpu
Vm02 use only 51% cpu.

I hope it is cleared to you. If you do have any problem let me know I
will elaborate it.

Thanks and regards
Nitesh Gangrade


-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Diego
Parasecoli
Sent: Friday, July 21, 2006 2:16 PM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] How set up CPU time

Hi all,
i know that for each virtual machine i can set up a number of vcpu. But 
if i want to give only a % of the real CPU? For example: how can i set 
up a virtual domain for using only 20% of the real CPU? is it possible?

Ty in advance

D.


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