Re: [PATCH net-next 6/6] net_sched: act: remove spinlock in fast path

On 07/02/15 16:59, Eric Dumazet wrote:

On Thu, 2015-07-02 at 09:35 -0700, John Fastabend wrote:

Point is to not dirty cache line for every packet ?

Doing the test means we attempt dirtying only ~HZ times per second,
which really matters to handle millions of packets per second.

My tests show a good enough performance, not sure we want a percpu thing
for this lastuse field.

Does it harm to always set gact->tcf_tm.lastuse ?

cheers,
jamal