On Mon, 2017-05-08 at 15:49 +0800, Shan Wei wrote: > Indeed, HZ=250. What is the problem about autotuning with HZ=250? >
You might look at recent patches. commit 645f4c6f2ebd040688cc2a5f626ffc909e66ccf2 ("tcp: switch rcv_rtt_est and rcvq_space to high resolution timestamps") Thanks.