Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/22106

Log:
commit e434c5a0500779f522dee718ab7b7406e0f7dd8d
Author: Yaguang Tang <yaguang.tang at canonical.com>
Date:   Fri Feb 15 23:46:34 2013 +0800

    Add support for instance CPU consumption control.
    
    Part 4 for blueprint quota-instance-resource, by setting cpu_shares,
    cpu_quota,cpu_period through nova flavor-set with admin credentials,
     the cloud admin can implement flexable policy on VM vcpu to physical
    CPU consumption ratio.
    
    for example:
    nova flavor-key m1.low_cpu set cpu_quota=10000
    nova flavor-key m1.low_cpu set cpu_period=20000
    the instance of m1.low_cpu can only has a max of 50% CPU consumption
    of a physical CPU computing capability.
    
    original reviews https://review.openstack.org/#/c/14151/
    DocImpact
    partly implement blueprint quota-instance-resource.
    
    Change-Id: I9ea1229ee78a4d706b1a18c0f4f15157611952e4