On 05/17/2018 10:47 AM, Eric Dumazet wrote:
> + /* compress ack timer : 5 % of srtt, but no more than 1 ms */
> +
> + delay = min_t(unsigned long, NSEC_PER_MSEC,
> + tp->rcv_rtt_est.rtt_us * (NSEC_PER_USEC >> 3)/20);
>
Yuchung suggested that we use min(rtt, rcv_rtt), a
When TCP receives an out-of-order packet, it immediately sends
a SACK packet, generating network load but also forcing the
receiver to send 1-MSS pathological packets, increasing its
RTX queue length/depth, and thus processing time.
Wifi networks suffer from this aggressive behavior, but generally
