(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
On Fri, 2016-04-15 at 21:02 +, Butler, Peter wrote:
> (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 mo
On 04/15/2016 02:02 PM, Butler, Peter wrote:
(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 identica
.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
On Fri, 2016-04-15 at 15:33 -0700, Eric Dumazet wrote:
> On Fri, 2016-04-15 at 21:02 +, Butler, Peter wrote:
> > (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
form the tests in this setup the 3.4.2 and 4.4.0 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.kerne
pril-18-16 8:17 AM
To: Butler, Peter
Cc: netdev@vger.kernel.org
Subject: Re: Poorer networking performance in later kernels?
On Fri, 2016-04-15 at 15:33 -0700, Eric Dumazet wrote:
> On Fri, 2016-04-15 at 21:02 +, Butler, Peter wrote:
> > (Please keep me CC'd to all comments/resp
mailto:eric.duma...@gmail.com]
Sent: April-18-16 8:17 AM
To: Butler, Peter
Cc: netdev@vger.kernel.org
Subject: Re: Poorer networking performance in later kernels?
On Fri, 2016-04-15 at 15:33 -0700, Eric Dumazet wrote:
> On Fri, 2016-04-15 at 21:02 +, Butler, Peter wrote:
> > (Please
On Mon, 2016-04-18 at 16:27 +, Butler, Peter wrote:
> Hi Eric
>
> Thanks for your response. My apologies for being late in getting back
> to you - I wasn't able to have access to the lab hardware on the
> weekend.
>
> I performed your test as suggested - I've provided a side-by-side diff
> o
people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
:)
Any other ideas? What can I be missing here?
Peter
-Original Message-
From: Rick Jones [mailto:rick.jon...@hpe.com]
Sent: April-15-16 6:3
> -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:
>>
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
On 04/19/2016 04:54 PM, Butler, Peter wrote:
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 cha
> 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
From: Oliver Hartkopp
Date: Tue, 19 Apr 2016 17:58:03 +0200
> On 04/19/2016 04:54 PM, Butler, Peter wrote:
>
>>
>> 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
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
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