Re: [PATCH net] tcp: Do not underestimate rwnd_limited

2018-12-05 Thread David Miller
From: Eric Dumazet Date: Wed, 5 Dec 2018 14:24:31 -0800 > If available rwnd is too small, tcp_tso_should_defer() > can decide it is worth waiting before splitting a TSO packet. > > This really means we are rwnd limited. > > Fixes: 5615f88614a4 ("tcp: instrument how long TCP is limited by recei

Re: [PATCH net] tcp: Do not underestimate rwnd_limited

2018-12-05 Thread Yuchung Cheng
On Wed, Dec 5, 2018 at 2:28 PM Soheil Hassas Yeganeh wrote: > > On Wed, Dec 5, 2018 at 5:24 PM Eric Dumazet wrote: > > > > If available rwnd is too small, tcp_tso_should_defer() > > can decide it is worth waiting before splitting a TSO packet. > > > > This really means we are rwnd limited. > > >

Re: [PATCH net] tcp: Do not underestimate rwnd_limited

2018-12-05 Thread Soheil Hassas Yeganeh
On Wed, Dec 5, 2018 at 5:24 PM Eric Dumazet wrote: > > If available rwnd is too small, tcp_tso_should_defer() > can decide it is worth waiting before splitting a TSO packet. > > This really means we are rwnd limited. > > Fixes: 5615f88614a4 ("tcp: instrument how long TCP is limited by receive > w

[PATCH net] tcp: Do not underestimate rwnd_limited

2018-12-05 Thread Eric Dumazet
If available rwnd is too small, tcp_tso_should_defer() can decide it is worth waiting before splitting a TSO packet. This really means we are rwnd limited. Fixes: 5615f88614a4 ("tcp: instrument how long TCP is limited by receive window") Signed-off-by: Eric Dumazet --- net/ipv4/tcp_output.c |