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Hi jiangping，
I believe that these QoS features about cpu, io, bandwidth are NOT come true yet, I was working for cpu QoS based on ECU and libvirt/Cgroup recently, any communication will be welcome. :)
Yaguang Tang from sina has post a blueprint here, http://wiki.openstack.org/InstanceResourceQuota, but the code is reviewed in progress now.

2012-11-06



Wangpan



发件人：蒋平
发送时间：2012-11-06 17:16
主题：[Openstack] set Server CPU, disk IO, Bandwidth consumption limit for instances using the new feather of nova!!!???
收件人："openstack"<openstack at lists.launchpad.net>
抄送：

Hi sir,
      I have a very troublesome problem:when I input "nova-manage flavor set_key --name m1.small -- key read_bytes_sec --value 10240000"etc into the terminal in order to limit CPU,disk IO,Bandwidth consumption.Then I restart some relative service,such as nova-compute etc.
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