On Tue, Apr 19, 2016 at 9:54 AM, Butler, Peter wrote:
>> -Original Message-
>> From: Rick Jones [mailto:rick.jon...@hpe.com]
>> Sent: April-15-16 6:37 PM
>> To: Butler, Peter ; netdev@vger.kernel.org
>> Subject: Re: Poorer networking performance in later kern
> I think the issue is resolved. I had to recompile my 4.4.0 kernel with a few
> options pertaining to the Intel NIC which somehow (?) got left out or
> otherwise clobbered when I ported my 3.4.2 .config to the 4.4.0 kernel source
> tree. With those changes now in I see essentially identical p
> -Original Message-
> From: Rick Jones [mailto:rick.jon...@hpe.com]
> Sent: April-15-16 6:37 PM
> To: Butler, Peter ; netdev@vger.kernel.org
> Subject: Re: Poorer networking performance in later kernels?
>
> On 04/15/2016 02:02 PM, Butler, Peter wrote:
>>
is still good,
but the 'empty' fields that exist in one kernel or the other can safely be
assumed to be zero counts where left out.
-Original Message-----
From: Butler, Peter
Sent: April-18-16 12:27 PM
To: 'Eric Dumazet'
Cc: netdev@vger.kernel.org
Subject: R
astOctets
35328 0.0
| IpExtInNoECTPkts
11750.0
| IpExtInECT0Pkts
1150014 0.0
-Original Message-
From: Eric Dumazet [mailto:eric.duma...@gmail.com]
Sent: A
kernels on the actual hardware; what
I mean is that in VM-land the original problem is essentially gone, as I get
the same throughput with either kernel .
-Original Message-----
From: Butler, Peter
Sent: April-18-16 7:28 AM
To: 'Rick Jones' ; netdev@vger.kernel.org
Subject: RE: Poor
.4.0 kernels
perform identically - just as you would expect.
Any other ideas? What can I be missing here?
Peter
-Original Message-
From: Rick Jones [mailto:rick.jon...@hpe.com]
Sent: April-15-16 6:37 PM
To: Butler, Peter ; netdev@vger.kernel.org
Subject: Re: Poorer networking perf
(Please keep me CC'd to all comments/responses)
I've tried a kernel upgrade from 3.4.2 to 4.4.0 and see a marked drop in
networking performance. Nothing was changed on the test systems, other than
the kernel itself (and kernel modules). The identical .config used to build
the 3.4.2 kernel was
