Hi,

Yes on the LD_PRELOAD.

Yes, I have one node running with Solarflare SFN8522 2p 10Gbit/s currently
without Onload enabled.
it has 17.5K http_request_rate and ~26% server interrupts on core 0 and 1
where the NIC IRQ is bound to.

And I have a similar node with Intel X710 2p 10Gbit/s.
It has 26.1K http_request_rate and ~26% server interrupts on core 0 and 1
where the NIC IRQ is bound to.

both nodes have 1 socket, Intel Xeon CPU E3-1280 v6, 32 GB RAM.

So without Onload Solarflare performs worse than the X710 since it has the
same amount of SI load with less traffic. And a side note is that I haven't
compared the ethtool settings between Intel and Solarflare, just running
with the defaults of both cards.
I currently have a support ticket open with the Solarflare team to about
the issues I mentioned in my previous mail, if they sort that out I can
perhaps setup a test server if I can manage to free up one server.
Then we can do some synthetic benchmarks with a set of parameters of your
choosing.

Regards,
/Elias



On Wed, Dec 20, 2017 at 9:48 AM, Willy Tarreau <[email protected]> wrote:

> Hi Elias,
>
> On Tue, Dec 19, 2017 at 02:23:21PM +0100, Elias Abacioglu wrote:
> > Hi,
> >
> > I recently bought a solarflare NIC with (ScaleOut) Onload / OpenOnload to
> > test it with HAproxy.
> >
> > Have anyone tried running haproxy with solarflare onload functions?
> >
> > After I started haproxy with onload, this started spamming on the kernel
> > log:
> > Dec 12 14:11:54 dflb06 kernel: [357643.035355] [onload]
> > oof_socket_add_full_hw: 6:3083 ERROR: FILTER TCP 10.3.54.43:4147
> > 10.3.20.116:80 failed (-16)
> > Dec 12 14:11:54 dflb06 kernel: [357643.064395] [onload]
> > oof_socket_add_full_hw: 6:3491 ERROR: FILTER TCP 10.3.54.43:39321
> > 10.3.20.113:80 failed (-16)
> > Dec 12 14:11:54 dflb06 kernel: [357643.081069] [onload]
> > oof_socket_add_full_hw: 3:2124 ERROR: FILTER TCP 10.3.54.43:62403
> > 10.3.20.30:445 failed (-16)
> > Dec 12 14:11:54 dflb06 kernel: [357643.082625] [onload]
> > oof_socket_add_full_hw: 3:2124 ERROR: FILTER TCP 10.3.54.43:62403
> > 10.3.20.30:445 failed (-16)
> >
> > And this in haproxy log:
> > Dec 12 14:12:07 dflb06 haproxy[21145]: Proxy ssl-relay reached system
> > memory limit at 9931 sockets. Please check system tunables.
> > Dec 12 14:12:07 dflb06 haproxy[21146]: Proxy ssl-relay reached system
> > memory limit at 9184 sockets. Please check system tunables.
> > Dec 12 14:12:07 dflb06 haproxy[21145]: Proxy HTTP reached system memory
> > limit at 9931 sockets. Please check system tunables.
> > Dec 12 14:12:07 dflb06 haproxy[21145]: Proxy HTTP reached system memory
> > limit at 9931 sockets. Please check system tunables.
> >
> >
> > Apparently I've hit the max hardware filter limit on the  card.
> > Does anyone here have experience in running haproxy with onload features?
>
> I've never got any report of any such test, though in the past I thought
> it would be nice to run such a test, at least to validate the perimeter
> covered by the library (you're using it as LD_PRELOAD, that's it ?).
>
> > Mind sharing insights and advice on how to get a functional setup?
>
> I really don't know what can reasonably be expected from code trying to
> partially bypass a part of the TCP stack to be honnest. From what I've
> read a long time ago, onload might be doing its work in a not very
> intrusive way but judging by your messages above I'm having some doubts
> now.
>
> Have you tried without this software, using the card normally ? I mean,
> 2 years ago I had the opportunity to test haproxy on a dual-40G setup
> and we reached 60 Gbps of forwarded traffic with all machines in the
> test bench reaching their limits (and haproxy reaching 100% as well),
> so for me that proves that the TCP stack still scales extremely well
> and that while such acceleration software might make sense for a next
> generation NIC running on old hardware (eg: when 400 Gbps NICs start
> to appear), I'm really not convinced that it makes any sense to use
> them on well supported setups like 2-4 10Gbps links which are very
> common nowadays. I mean, I managed to run haproxy at 10Gbps 10 years
> ago on a core2-duo! Hardware has evolved quite a bit since :-)
>
> Regards,
> Willy
>

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