Hello everyone,
I am trying to tweak some of the sysctl tunables for the ix (ixgbe) driver
in FreeBSD 9.2 since I am experiencing less than ideal performance and it
seems like I can't find any:
# sysctl -a | grep -i ixgbe
deviceixgbe
I am running 9.2-RC4.
Any input appreciated.
Thanks,
--
sysctl dev.ix.0 etc...
Jack
On Thu, Oct 3, 2013 at 12:35 PM, Rumen Telbizov telbi...@gmail.com wrote:
Hello everyone,
I am trying to tweak some of the sysctl tunables for the ix (ixgbe) driver
in FreeBSD 9.2 since I am experiencing less than ideal performance and it
seems like I can't
Thanks Jack,
So I am running a couple of FreeBSD machines with those and they are in
LACP pair plus vlans on top of them.
When I run iperf between the two I get about about 1.7Gbit/s with 1 thread
and I max out around 4.5-5Gbp/s with 6-8 multiple parallel threads (tried
both UDP and TCP).
What
Make sure you are in slots with enough lanes/bandwidth, the driver should
complain when loaded
if you aren't though. Make sure you aren't getting interrupts throttled,
and that you have sufficient
mbuf resources so you aren't waiting on those, that can make a BIG
difference.
Jack
On Thu, Oct
Jack,
Thanks for the hints.
I checked that the card is inserted into PCIe v3.0 x16 + I get no
complaints from the driver.
I checked for interrupt throttling messages in the logs - found nothing. I
also set hw.intr_storm_threshold: 1
then I saw hw.igb.max_interrupt_rate: 8000 and figured that
Set the storm threshold to 0, that way you disable the check and don't have
to wonder
if its a problem :)
Given everything you've told me I'd suspect the switch... easy enough to
test, remove it
from the equation, run two systems back-to-back and see how that effects
the numbers.
Jack
On Thu,
Thanks Jack,
The switch/lacp is where I was shifting my focus to. Unfortunately it's a
remote site and it'll take some time before I can take it out of the
picture so I figured I might ask you first ;)
I'll report back here when I have more information.
Thanks for your feedback. Highly
There's an LACP knob that ignores doing the LACP hash if the mbuf has a
flowid. Find that knob and set it to 0. Then, retry.
-a
On 3 October 2013 15:24, Rumen Telbizov telbi...@gmail.com wrote:
Jack,
Thanks for the hints.
I checked that the card is inserted into PCIe v3.0 x16 + I get no
