Re: [PATCH v2 net-next 0/4] tcp: take a bit more care of backlog stress

2018-11-27 Thread Yuchung Cheng
On Tue, Nov 27, 2018 at 7:57 AM, Eric Dumazet wrote: > While working on the SACK compression issue Jean-Louis Dupond > reported, we found that his linux box was suffering very hard > from tail drops on the socket backlog queue. > > First patch hints the compiler about sack flows being the norm. >

[PATCH v2 net-next 0/4] tcp: take a bit more care of backlog stress

2018-11-27 Thread Eric Dumazet
While working on the SACK compression issue Jean-Louis Dupond reported, we found that his linux box was suffering very hard from tail drops on the socket backlog queue. First patch hints the compiler about sack flows being the norm. Second patch changes non-sack code in preparation of the ack com