Let the networking stack know when a memcg is under reclaim pressure
so that it can clamp its transmit windows accordingly.
Whenever the reclaim efficiency of a cgroup's LRU lists drops low
enough for a MEDIUM or HIGH vmpressure event to occur, assert a
pressure state in the socket and tcp memory
On Thu, Oct 22, 2015 at 12:21:36AM -0400, Johannes Weiner wrote:
...
> @@ -185,8 +183,29 @@ static void vmpressure_work_fn(struct work_struct *work)
> vmpr->reclaimed = 0;
> spin_unlock(&vmpr->sr_lock);
>
> + level = vmpressure_calc_level(scanned, reclaimed);
> +
> + if (level
Let the networking stack know when a memcg is under reclaim pressure,
so it can shrink its transmit windows accordingly.
Whenever the reclaim efficiency of a memcg's LRU lists drops low
enough for a MEDIUM or HIGH vmpressure event to occur, assert a
pressure state in the socket and tcp memory code
