On Mon, 2016-04-11 at 19:57 +0800, Yang Yingliang wrote: > > On 2016/4/8 22:44, Eric Dumazet wrote: > > On Fri, 2016-04-08 at 19:18 +0800, Yang Yingliang wrote: > > > >> I expand tcp_adv_win_scale and tcp_rmem. It has no effect. > > > > Try : > > > > echo -2 >/proc/sys/net/ipv4/tcp_adv_win_scale > > > > And restart your flows. > > > cat /proc/sys/net/ipv4/tcp_rmem > 10240 2097152 10485760
What about leaving the default values ? $ cat /proc/sys/net/ipv4/tcp_rmem 4096 87380 6291456 > > echo 102400 20971520 104857600 > /proc/sys/net/ipv4/tcp_rmem > echo -2 >/proc/sys/net/ipv4/tcp_adv_win_scale > > It seems has not effect. > I have no idea what you did on the sender side to allow it to send more than 1.5 MB then.
