Set io limit for image copy operation
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QiangGuan
Currently in some operation such as resize, we just copy image with cp or rsync without io limit. If this happened on hardware with pool io performance, it will lead to an io performance bottleneck.
This bp aims to add an io limt option for such image copy operation.
Whiteboard
If you are still working on this, please re-submit via nova-specs. If not, please mark as obsolete, and add a quick comment to describe why. --johnthetubaguy (20th April 2014)
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