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    SubjectRe: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2

    * Mike Galbraith <efault@gmx.de> wrote:

    > [...] The situation as we speak is that you can run cpu intensive
    > tasks while watching eye-candy. With RSDL, you can't, you feel the
    > non-interactive load instantly. [...]

    i have to agree with Mike that this is a material regression that cannot
    be talked around.

    Con, we want RSDL to /improve/ interactivity. Having new scheduler
    interactivity logic that behaves /worse/ in the presence of CPU hogs,
    which CPU hogs are even reniced to +5, than the current interactivity
    code, is i think a non-starter. Could you try to fix this, please? Good
    interactivity in the presence of CPU hogs (be them default nice level or
    nice +5) is _the_ most important scheduler interactivity metric.
    Anything else is really secondary.

    Ingo

    ps. please be nice to each other - both of you are long-time
    scheduler contributors who did lots of cool stuff :-)
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