Le mercredi 23 novembre 2011 à 07:47 -0500, jamal a écrit :
> On Wed, 2011-11-23 at 09:12 +0100, Eric Dumazet wrote:
>
> > I had no time to look at OVS, but current tc model is not scalable,
> > everything is performed under a queue lock.
> > Maybe its time to redesign a new model, based on modern techniques.
>
> Making the enqueur/dequeuer lockless would be a big win. What happened
> to your idea of ring buffer?
Currently thinking about it. I was also waiting Tom Herbert BQL patches.
Several people are interested, and John Fastabend told me he plans to :
(1) rcu'ify classifiers/actions as needed
(2) add flag to drop qdisc lock on simple or hw qdiscs
(3) mq and mqprio call root qdisc and run a pass over classifiers
actions possibly resetting queue_mapping.
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