[lkml]   [2006]   [Jul]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [ANNOUNCE][RFC] PlugSched-6.4 for 2.6.18-rc2
    Al Boldi wrote:
    > Peter Williams wrote:
    >> Al Boldi wrote:
    >>> Peter Williams wrote:
    >>>> Al Boldi wrote:
    [bits deleted]
    >>>>> It may be really great, to allow schedulers perPid parent, thus
    >>>>> allowing the stacking of different scheduler semantics. This could
    >>>>> aid flexibility a lot.
    >>>> I'm don't understand what you mean here. Could you elaborate?
    >>> i.e: Boot the kernel with spa_no_frills, then start X with spa_ws.
    >> It's probably not a good idea to have different schedulers managing the
    >> same resource. The way to do different scheduling per process is to use
    >> the scheduling policy mechanism i.e. SCHED_FIFO, SCHED_RR, etc.
    >> (possibly extended) within each scheduler. On the other hand, on an SMP
    >> system, having a different scheduler on each run queue (or sub set of
    >> queues) might be interesting :-).
    > What's wrong with multiple run-queues on UP?

    A really high likelihood of starvation of some tasks.

    Peter Williams

    "Learning, n. The kind of ignorance distinguishing the studious."
    -- Ambrose Bierce
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-07-26 02:53    [W:0.035 / U:1.440 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site