Re: [PATCH net-next 0/4] tcp: tsq: performance series

2016-12-02 Thread Eric Dumazet
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

[PATCH net-next 0/4] tcp: tsq: performance series

2016-12-02 Thread Eric Dumazet
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(