On Wed, Nov 8, 2017 at 12:29 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> Please do not top post on netdev.
Right - apologies for that.
>
> On Wed, 2017-11-08 at 11:04 -0500, Vitaly Davidovich wrote:
>> So this issue is somehow related to setting SO_RCVBUF *after*
>
(systemtap? bpf?) - any tips on that front would be appreciated.
Thanks again for the help.
On Fri, Nov 3, 2017 at 5:33 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On Fri, 2017-11-03 at 14:28 -0400, Vitaly Davidovich wrote:
>
>> So Eric, while I still have your interest here (al
On Fri, Nov 3, 2017 at 1:58 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On Fri, 2017-11-03 at 13:23 -0400, Vitaly Davidovich wrote:
>> On Fri, Nov 3, 2017 at 12:05 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
>> > On Fri, 2017-11-03 at 11:13 -0400, Vit
On Fri, Nov 3, 2017 at 12:05 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On Fri, 2017-11-03 at 11:13 -0400, Vitaly Davidovich wrote:
>> Ok, an interesting finding. The client was originally running with
>> SO_RCVBUF of 75K (apparently someone decided to set that for s
the equation.
Instead, perhaps it's some bad interaction between a low recv buf size
and either some other TCP setting or TSO mechanics (LRO specifically).
Still investigating further.
On Fri, Nov 3, 2017 at 10:02 AM, Vitaly Davidovich <vita...@gmail.com> wrote:
> On Fri, Nov 3, 2017 at 9:39 A
On Fri, Nov 3, 2017 at 9:39 AM, Vitaly Davidovich <vita...@gmail.com> wrote:
> On Fri, Nov 3, 2017 at 9:02 AM, Eric Dumazet <eric.duma...@gmail.com> wrote:
>> On Fri, 2017-11-03 at 06:00 -0700, Eric Dumazet wrote:
>>> On Fri, 2017-11-03 at 08:41 -0400, Vitaly D
On Fri, Nov 3, 2017 at 9:02 AM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On Fri, 2017-11-03 at 06:00 -0700, Eric Dumazet wrote:
>> On Fri, 2017-11-03 at 08:41 -0400, Vitaly Davidovich wrote:
>> > Hi Eric,
>> >
>> > Ran a few more tests yesterday with
On Fri, Nov 3, 2017 at 9:00 AM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On Fri, 2017-11-03 at 08:41 -0400, Vitaly Davidovich wrote:
>> Hi Eric,
>>
>> Ran a few more tests yesterday with packet captures, including a
>> capture on the client. It turns
on where/what to look at.
Thanks
On Wed, Nov 1, 2017 at 7:06 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On Wed, 2017-11-01 at 22:22 +0000, Vitaly Davidovich wrote:
>> Eric,
>>
>
>> Yes I agree. However the thing I’m still puzzled about is the client
>>
Hi all,
I'm seeing some puzzling TCP behavior that I'm hoping someone on this
list can shed some light on. Apologies if this isn't the right forum
for this type of question. But here goes anyway :)
I have client and server x86-64 linux machines with the 4.1.35 kernel.
I set up the following
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