Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/14151

Log:
commit d128ff5ee80d82e77040e8b2073010bb078afb8b
Author: Yaguang Tang <yaguang.tang at canonical.com>
Date:   Tue Dec 18 11:10:30 2012 +0800

    Add cpu resource quota for instance with kvm driver.
    
    By setting the cpu_unit of an instance type in extra specs filed.
    cloud administrator can control the instance vcpu consumption ratio
    to physical CPU. Adds a flag "cpu_unit" which indicates that the
    compute node's capability. to provide unified vcpu computing ablity.
    this value can be set depend on the physical CPU Basic Frequency.
    
    partly implement blueprint quota-instance-resource.
    
    DocImpact
    Change-Id: I723c6df2579dd0161067fc5bf1c311f7ee66b3e9