Am 28.03.2018 um 18:38 schrieb Rodney W. Grimes:
Am 28.03.2018 um 06:11 schrieb christian russell:
I am having trouble getting an Intel XL710-DA2 NIC to get even close to
line rate. It is a 4x10 Gbps card. The box is running FreeBSD 11 (FreeNAS
in particular).
We have tried both 1.7 and 1.9 driver revisions with similar results. The
NVM version is 5.05. The card is in a confirmed 8x slot on a SuperMicro
X10DRL-i with two Xeon E5-2600 processors and 256 GB DDR4 RAM. After
upping the interrupt threshold to 9000 dmesg doesn't log anything unusual.
We have added the tunes that are standard for 10 Gbps configurations.
On a single-client basis the fastest rates we see are around 5 Gbps.
Hitting this server from multiple boxes we see peaks of 20 Gbps at the very
highest. More frequently things top off around 13 Gbps. These numbers are
coming from iperf tests. We are seeing similar numbers with direct
point-to-point as well as switched topologies.
These threads from 2015 describe similar issues but fizzled out:
https://lists.freebsd.org/pipermail/freebsd-net/2015-May/042273.html
https://lists.freebsd.org/pipermail/freebsd-net/2015-October/043584.html
Is there very particular tuning required to get these cards working at
proper speed? Any insights?
>From Googling around it appears frustration with this card and FreeBSD is
pretty common.
Thanks in advance.
Christian
I can't deliver any special insights but we had many problems with X710
(without L) and Linux.
Did some testing a while ago with OPNsense (based on 11.1) and got line
rate with iperf and single client.
ixl0 in and ixl1 out. So this should be fine. If you like I can send you
the sysctl values to compare.
I would be interested in your sysctl values.
Hm, perhaps I misinterpreted your post. I recreated the lab and from the
history I saw
that it was single client but with 10 streams in parallel. If I reduce
to 1 stream I also
don't come over the 5,6G.
If you're still interested I can send you the output.
Michael
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