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    SubjectRe: [RFC] IO Controller
    Hi Vivek,

    Could you tell me to which kernel I can apply your patches?
    # latest mm?
    I would like to test your controller.

    Thank you,
    Takuya Yoshikawa

    Vivek Goyal wrote:
    > Hi All,
    > Here is another posting for IO controller patches. Last time I had posted
    > RFC patches for an IO controller which did bio control per cgroup.
    > One of the takeaway from the discussion in this thread was that let us
    > implement a common layer which contains the proportional weight scheduling
    > code which can be shared by all the IO schedulers.
    > Implementing IO controller will not cover the devices which don't use
    > IO schedulers but it should cover the common case.
    > There were more discussions regarding 2 level vs 1 level IO control at
    > following link.
    > So in the mean time we took the discussion off the list and spent time on
    > making the 1 level control apporoach work where majority of the proportional
    > weight control is shared by the four schedulers instead of each one having
    > to replicate the code. We make use of BFQ code for fair queuing as posted
    > by Paolo and Fabio here.
    > Details about design and howto have been put in documentation patch.
    > I have done very basic testing of running 2 or 3 "dd" threads in different
    > cgroups. Wanted to get the patchset out for feedback/review before we dive
    > into more bug fixing, benchmarking, optimizations etc.
    > Your feedback/comments are welcome.
    > Patch series contains 10 patches. It should be compilable and bootable after
    > every patch. Intial 2 patches implement flat fair queuing (no cgroup
    > support) and make cfq to use that. Later patches introduce hierarchical
    > fair queuing support in elevator layer and modify other IO schdulers to use
    > that.
    > Thanks
    > Vivek
    > _______________________________________________
    > Containers mailing list

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