[lkml]   [2008]   [Feb]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH [RT] 08/14] add a loop counter based timeout mechanism
    On Fri, Feb 22, 2008 at 11:19 AM, Bill Huey (hui) <> wrote:
    > Yeah, I'm not very keen on having a constant there without some
    > contention instrumentation to see how long the spins are. It would be
    > better to just let it run until either task->on_cpu is off or checking
    > if the "current" in no longer matches the mutex owner for the runqueue
    > in question. At that point, you know the thread isn't running.
    > Spinning on something like that is just a waste of time. It's for that
    > reason that doing in the spin outside of a preempt critical section
    > isn't really needed

    Excuse me, I meant to say "...isn't a problem".


     \ /
      Last update: 2008-02-22 20:25    [W:0.143 / U:17.496 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site