Re: [PATCH net-next v3 0/2] tcp: fix high tail latencies in DCTCP

2018-07-09 Thread Lawrence Brakmo
On 7/9/18, 12:32 PM, "Yuchung Cheng" wrote: On Sat, Jul 7, 2018 at 7:07 AM, Neal Cardwell wrote: > On Sat, Jul 7, 2018 at 7:15 AM David Miller wrote: >> >> From: Lawrence Brakmo >> Date: Tue, 3 Jul 2018 09:26:13 -0700 >> >> > When have observed high tail latencies

Re: [PATCH net-next v3 0/2] tcp: fix high tail latencies in DCTCP

2018-07-09 Thread Yuchung Cheng
On Sat, Jul 7, 2018 at 7:07 AM, Neal Cardwell wrote: > On Sat, Jul 7, 2018 at 7:15 AM David Miller wrote: >> >> From: Lawrence Brakmo >> Date: Tue, 3 Jul 2018 09:26:13 -0700 >> >> > When have observed high tail latencies when using DCTCP for RPCs as >> > compared to using Cubic. For example, in

Re: [PATCH net-next v3 0/2] tcp: fix high tail latencies in DCTCP

2018-07-07 Thread Neal Cardwell
On Sat, Jul 7, 2018 at 7:15 AM David Miller wrote: > > From: Lawrence Brakmo > Date: Tue, 3 Jul 2018 09:26:13 -0700 > > > When have observed high tail latencies when using DCTCP for RPCs as > > compared to using Cubic. For example, in one setup there are 2 hosts > > sending to a 3rd one, with

Re: [PATCH net-next v3 0/2] tcp: fix high tail latencies in DCTCP

2018-07-07 Thread David Miller
From: Lawrence Brakmo Date: Tue, 3 Jul 2018 09:26:13 -0700 > When have observed high tail latencies when using DCTCP for RPCs as > compared to using Cubic. For example, in one setup there are 2 hosts > sending to a 3rd one, with each sender having 3 flows (1 stream, > 1 1MB back-to-back RPCs and