Hi Alex,
see attached. thanks!
Hank
On Wed, Sep 7, 2016 at 7:32 PM, Alexander Duyck
wrote:
> Can you send me an lspci -vvv dump for the card. The main piece I am
> interested in seeing is the link status register output. I just want
> to verify that you are linked at x8 gen2.
>
> - Alex
>
>
So the lspci looks good. It looks like everything is optimal there.
>From what I can tell it looks like the NICs are in slots associated
with NUMA node 0.
So my thought on all this is that what is likely limiting your
throughput is most likely the packet processing overhead associated
with the fa
Hey Hank,
The reason I was interested in you results with parallel UPD netperf test is 1)
if we didn’t see the problem there it would be a strong indication that the
bottle neck is above the stack or 2) if we did see the same performance issue I
would be able to recreate internally here.
I’m n
Attachments don't make it to the mailing list. You really should file a bug on
sourceforge so more people can look at the information.
Todd Fujinaka
Software Application Engineer
Networking Division (ND)
Intel Corporation
todd.fujin...@intel.com
(503) 712-4565
-Original Message-
From: Ha
Hi Alex,
I appreciate your input. As you pointed out that we would expect single
queue and single xeon cpu core should be able to handle say 5-6G. Then, if
RSS come in place, we should easily handle close to 10G. However, with 8 or
16 queues, I still get pause frame. Without any basic problems - w
Hi Don,
I already hacked the ixgbe driver but I don't expect that will make much
difference. I am missing something still...
May be I need to look hard on DPDK down the road, but for now, I am hoping
there is a simple solution to get my product going...
Hank
On Thu, Sep 8, 2016 at 10:21 AM, Sk
I forgot to ask a question about how to set interrupt modulation and make
sure it's set. I get used to proset on Windows world. With linux, i use
ethtool -C to set it but it only allow me to set rx-usecs, setting other
fields like rx-frames, etc doesn't honor it.
So, what is the right way to set i
Hi Hank,
So I don't think you quite understand how the protocol stack works.
The driver operates in softirq context. Within that context we handle
everything up to and including copying the incoming packet into the
socket buffer. So when I say it is the socket layer having issues,
what I mean is
Hi Alex,
I also think existing network stack overhead is too much for high BW
network. However, I would thought that with system resource we have, Intel
card should handle 1 x 10Gbps traffic regardless what type of traffic that
is right out of the box. Thing I don't understand is that you kept say
