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    SubjectRe: [RFC/RFT PATCH v3] sched: automated per tty task groups
    On Sun, 2010-11-14 at 19:12 -0800, Linus Torvalds wrote:

    > I'm also very happy with just what it does to interactive performance.
    > Admittedly, my "testcase" is really trivial (reading email in a
    > web-browser, scrolling around a bit, while doing a "make -j64" on the
    > kernel at the same time), but it's a test-case that is very relevant
    > for me. And it is a _huge_ improvement.

    Next logical auto-step would be to try to subvert cfq. At a glance,
    io_context looks highly hackable for !CONFIG_CFQ_GROUP_IOSCHED case.
    The other case may get interesting for someone not very familiar with
    cfq innards, but I see a tempting looking subversion point.


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