[lkml]   [2003]   [Oct]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Circular Convolution scheduler
    Ok, I'll admit my ignorance.  What is circular convolution?  Where can 
    I learn more?


    Clayton Weaver wrote:
    > Though the mechanism is doubtless familiar
    > to signal processing and graphics implementers,
    > it's probably not thought of much in a
    > process scheduling contex (although there was
    > the Evolution Scheduler of a few years ago,
    > whose implementer may have had something like
    > circular convolution in mind). It just seems to me
    > (intuition) that the concept of what circular convolution does is akin to what we've been
    > feeling around for with these ad hoc heuristic
    > tweaks to the scheduler to adjust for interactivity
    > and batch behavior, searching for an incremental self-adjusting mechanism that favors interactivity
    > on demand.
    > I've never implemented a circular convolver in
    > any context, so I was wondering if anyone who
    > has thinks scheduler prioritization would be
    > simpler if implemented directly as a circular convolution.
    > (If nothing else, it seems to me that the abstract model of what the schedule prioritizer is doing
    > would be more coherent than it is with ad hoc
    > code. This perhaps reduces the risk of unexpected side-effects of incremental tweaks to the scheduler. The behavior of an optimizer that implements
    > an integer approximation of a known mathematical transform when you change its inputs is fairly predictable.)
    > Regards,
    > Clayton Weaver
    > <mailto:>

    George Anzinger
    Preemption patch:

    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: 2005-03-22 13:49    [W:0.020 / U:2.184 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site