On Fri, Dec 2, 2016 at 10:25 AM, Eric Dumazet wrote:
> Under very high TX stress, CPU handling NIC TX completions can spend
> considerable amount of cycles handling TSQ (TCP Small Queues) logic.
>
> This patch series avoids some atomic operations, but more important
> patch is the 3rd one, allowin
Under very high TX stress, CPU handling NIC TX completions can spend
considerable amount of cycles handling TSQ (TCP Small Queues) logic.
This patch series avoids some atomic operations, but more important
patch is the 3rd one, allowing other cpus processing ACK packets and
calling tcp_write_xmit(