lkml.org 
[lkml]   [2004]   [Mar]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [Lse-tech] [patch] sched-domain cleanups, sched-2.6.5-rc2-mm2-A3
    Date
    From
        There's no way the scheduler can figure out the scheduling and memory
    use patterns of the new tasks in advance.

    True. Four threads may want to stay on the same node because they are
    sharing a lot of data and working on something in parallel, or they
    may want to go to different nodes because the only thing they have in
    common is a control structure that directs their (largely independent
    but highly synchronized) efforts.

    A while ago there was some effort at user-level page replication, which
    meant you took a hit once but after that you'd effectively migrated a page
    to your local memory. The longer you stayed put, the more local your
    RSS got. I seem to recall some bugs or caveats, though. Anybody know
    the state of that? It might take the burden off the scheduler using a
    crystal ball and putting it on a 20/20-hindsight VM system instead.

    Rick
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 14:01    [W:0.037 / U:30.444 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site