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    SubjectRe: [PATCH] sched: rsdl improvements
    Artur Skawina wrote:
    > Con Kolivas wrote:
    >> Note no interactive boost idea here.
    >> Patch is for 2.6.21-rc4-mm1. I have not spent the time trying to bring other
    >> bases in sync.
    > I've tried RSDLv.31+this on as i'm not tracking -mm.
    >> Further improve the deterministic nature of the RSDL cpu scheduler and make
    >> the rr_interval tunable.
    >> By only giving out priority slots to tasks at the current runqueue's
    >> prio_level or below we can make the cpu allocation not altered by accounting
    >> issues across major_rotation periods. This makes the cpu allocation and
    >> latencies more deterministic, and decreases maximum latencies substantially.
    >> This change removes the possibility that tasks can get bursts of cpu activity
    >> which can favour towards interactive tasks but also favour towards cpu bound
    >> tasks which happen to wait on other activity (such as I/O) and is a net
    >> gain.
    > I'm not sure this is going in the right direction... I'm writing
    > this while compiling a kernel w/ "nice -20 make -j2" and X is almost
    Did you mean "nice -20"? If so, that should have slowed X quite a bit.
    Try "nice 19" instead.

    Run COMMAND with an adjusted niceness, which affects process
    scheduling. With no COMMAND, print the current niceness. Nicenesses
    range from -20 (most favorable scheduling) to 19 (least favorable).

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