Re: [PATCH net-next 0/3] tcp: improving RACK cpu performance

2017-10-06 Thread Yuchung Cheng
On Thu, Oct 5, 2017 at 9:26 PM, David Miller wrote: > > From: Yuchung Cheng > Date: Wed, 4 Oct 2017 12:59:57 -0700 > > > This patch set improves the CPU consumption of the RACK TCP loss > > recovery algorithm, in particular for high-speed networks. Currently, > > for every ACK in recovery RACK c

Re: [PATCH net-next 0/3] tcp: improving RACK cpu performance

2017-10-05 Thread David Miller
From: Yuchung Cheng Date: Wed, 4 Oct 2017 12:59:57 -0700 > This patch set improves the CPU consumption of the RACK TCP loss > recovery algorithm, in particular for high-speed networks. Currently, > for every ACK in recovery RACK can potentially iterate over all sent > packets in the write queue.

[PATCH net-next 0/3] tcp: improving RACK cpu performance

2017-10-04 Thread Yuchung Cheng
This patch set improves the CPU consumption of the RACK TCP loss recovery algorithm, in particular for high-speed networks. Currently, for every ACK in recovery RACK can potentially iterate over all sent packets in the write queue. On large BDP networks with non-trivial losses the RACK write queue