• Davidlohr Bueso's avatar
    locktorture: Support rtmutex torturing · 095777c4
    Davidlohr Bueso authored
    Real time mutexes is one of the few general primitives
    that we do not have in locktorture. Address this -- a few
    o To spice things up, enable competing thread(s) to become
    rt, such that we can stress different prio boosting paths
    in the rtmutex code. Introduce a ->task_boost callback,
    only used by rtmutex-torturer. Tasks will boost/deboost
    around every 50k (arbitrarily) lock/unlock operations.
    o Hold times are similar to what we have for other locks:
    only occasionally having longer hold times (per ~200k ops).
    So we roughly do two full rt boost+deboosting ops with
    short hold times.
    Signed-off-by: default avatarDavidlohr Bueso <dbueso@suse.de>
    Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
    Reviewed-by: default avatarJosh Triplett <josh@joshtriplett.org>
locktorture.txt 5.69 KB