• Arjan van de Ven's avatar
    slab: use deferable timers for its periodic housekeeping · 78b43536
    Arjan van de Ven authored
    slab has a "once every 2 second" timer for its housekeeping.
    As the number of logical processors is growing, its more and more
    common that this 2 second timer becomes the primary wakeup source.
    This patch turns this housekeeping timer into a deferable timer,
    which means that the timer does not interrupt idle, but just runs
    at the next event that wakes the cpu up.
    The impact is that the timer likely runs a bit later, but during the
    delay no code is running so there's not all that much reason for
    a difference in housekeeping to occur because of this delay.
    Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
    Signed-off-by: default avatarPekka Enberg <penberg@cs.helsinki.fi>