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    SubjectRe: [RFC] writeback and cgroup
    On Fri, Apr 20, 2012 at 03:29:30PM -0400, Vivek Goyal wrote:
    > I am personally is not too excited about the case of putting async IO
    > in separate groups due to the reason that async IO of one group will
    > start impacting latencies of sync IO of another group and in practice
    > it might not be desirable. But there are others who have use cases for
    > separate async IO queue. So as long as switch is there to change the
    > behavior, I am not too worried.

    Why not just fix cfq so that it prefers groups w/ sync IOs?


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