Poor speeds with Chelsio T420-CR 10gb NIC
-
I have two systems, one with Chelsio T520-CR-SO and another with Intel x520, neither has had any perf issues I've observed.
Here's the A1SRM-2758f system (although not an official negate box) with T520-CR-SO tuneable which is the only one I can get to easily.
[2.3.2-RELEASE][admin@pfSense.local.lan]/root: cat /boot/loader.conf autoboot_delay="3" comconsole_speed="115200" hw.usb.no_pf="1"
-
I compared the tunables with my system and there is no difference. Is there anything in /boot/loader.conf.local? And what do you have in System>Advanced>Networking>Network Interfaces?
I am guessing you are getting 10gb speeds.
Here is another test where i booted into vanilla FreeBSD-11 on the pfsense router
Chelsio T420-CR (pfsense router running FreeBSD 11) and Mellanox ConnectX-2 EN (linux desktop)[ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 1.09 GBytes 9.38 Gbits/sec 0 1.03 MBytes [ 4] 1.00-2.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 2.00-3.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 3.00-4.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 4.00-5.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 5.00-6.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 6.00-7.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 7.00-8.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 8.00-9.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 9.00-10.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 10.9 GBytes 9.39 Gbits/sec 0 sender [ 4] 0.00-10.00 sec 10.9 GBytes 9.39 Gbits/sec receiverSo, the card works well in native FreeBSD-11. I then tested in pfSense-2.4 snapshot image which is based on FreeBSD-11. Again i got dismal speeds.
-
Nothing interesting…
[2.3.2-RELEASE][admin@pfSense.local.lan]/root: cat /boot/loader.conf.local kern.cam.boot_delay=10000
-
Ill grab some benchmark points for you over the weekend when I get a free moment.
-
-
I compared the tunables with my system and there is no difference. Is there anything in /boot/loader.conf.local? And what do you have in System>Advanced>Networking>Network Interfaces?
I am guessing you are getting 10gb speeds.
Here is another test where i booted into vanilla FreeBSD-11 on the pfsense router
Chelsio T420-CR (pfsense router running FreeBSD 11) and Mellanox ConnectX-2 EN (linux desktop)[ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 1.09 GBytes 9.38 Gbits/sec 0 1.03 MBytes [ 4] 1.00-2.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 2.00-3.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 3.00-4.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 4.00-5.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 5.00-6.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 6.00-7.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 7.00-8.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 8.00-9.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes [ 4] 9.00-10.00 sec 1.09 GBytes 9.40 Gbits/sec 0 1.08 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 10.9 GBytes 9.39 Gbits/sec 0 sender [ 4] 0.00-10.00 sec 10.9 GBytes 9.39 Gbits/sec receiverSo, the card works well in native FreeBSD-11. I then tested in pfSense-2.4 snapshot image which is based on FreeBSD-11. Again i got dismal speeds.
sorry for a stream of replies… take a look at your network stack variables and see if theres anything obvious. Check buffer/window sizes/scaling etc. The articles KOM listed above are good starting points to troubleshoot.
-
I could be completely off the mark …. from memory (when working with storage) the Chelsio 10GB cards stuggled under heavy load with Flow Control enabled. I.e. Too many pause frames.
Try to disable flow control on all devices and see how things go.I appolgize in advance if this is leading you down the wrong path....
-
I could be completely off the mark …. from memory (when working with storage) the Chelsio 10GB cards stuggled under heavy load with Flow Control enabled. I.e. Too many pause frames.
Try to disable flow control on all devices and see how things go.I appolgize in advance if this is leading you down the wrong path....
I am clutching at the straws myself so appreciate any idea.
I can't find a flowcontrol sysctl for cxgb card. The only ones listed are for the igb interface
$sysctl -a | grep .fc: dev.igb.3.fc: 3 dev.igb.2.fc: 3 dev.igb.1.fc: 3 dev.igb.0.fc: 3However, i did find the dev.cxgbe.0.pause_settings sysctl. man page for cxgbe interface suggests
hw.cxgbe.pause_settings PAUSE frame settings. Bit 0 is rx_pause, bit 1 is tx_pause. rx_pause = 1 instructs the hardware to heed incoming PAUSE frames, 0 instructs it to ignore them. tx_pause = 1 allows the hardware to emit PAUSE frames when its receive FIFO reaches a high threshold, 0 prohibits the hardware from emitting PAUSE frames. The default is 3 (both rx_pause and tx_pause = 1). This tunable establishes the default PAUSE settings for all ports. Settings can be displayed and controlled on a per-port basis via the dev.cxgbe.X.pause_settings (dev.cxl.X.pause_settings for T5 cards) sysctl.The default value was set to
$sysctl dev.cxgbe.0.pause_settings dev.cxgbe.0.pause_settings: 3 <pause_rx,pause_tx></pause_rx,pause_tx>I changed it to 0
$sysctl dev.cxgbe.0.pause_settings=0 dev.cxgbe.0.pause_settings: 3 <pause_rx,pause_tx>-> 3 <pause_rx,pause_tx>$sysctl dev.cxgbe.0.pause_settings dev.cxgbe.0.pause_settings: 0</pause_rx,pause_tx></pause_rx,pause_tx>iperf3 results were the same as before
[ ID] Interval Transfer Bandwidth [ 5] 0.00-1.00 sec 110 MBytes 919 Mbits/sec [ 5] 1.00-2.00 sec 111 MBytes 930 Mbits/sec [ 5] 2.00-3.00 sec 111 MBytes 929 Mbits/sec [ 5] 3.00-4.00 sec 111 MBytes 929 Mbits/sec [ 5] 4.00-5.00 sec 111 MBytes 932 Mbits/sec [ 5] 5.00-6.00 sec 111 MBytes 932 Mbits/sec [ 5] 6.00-7.00 sec 111 MBytes 929 Mbits/sec [ 5] 7.00-8.00 sec 111 MBytes 928 Mbits/sec [ 5] 8.00-9.00 sec 111 MBytes 931 Mbits/sec [ 5] 9.00-10.00 sec 111 MBytes 930 Mbits/sec [ 5] 10.00-10.01 sec 660 KBytes 925 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth [ 5] 0.00-10.01 sec 0.00 Bytes 0.00 bits/sec sender [ 5] 0.00-10.01 sec 1.08 GBytes 929 Mbits/sec receiver -
I enabled tso on the cxgbe interface
ifconfig cxgbe0 tsoand the speed improved
[ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 190 MBytes 1.59 Gbits/sec 0 251 MBytes [ 4] 1.00-2.00 sec 185 MBytes 1.55 Gbits/sec 0 251 MBytes [ 4] 2.00-3.00 sec 180 MBytes 1.51 Gbits/sec 0 251 MBytes [ 4] 3.00-4.00 sec 176 MBytes 1.48 Gbits/sec 0 251 MBytes [ 4] 4.00-5.00 sec 183 MBytes 1.54 Gbits/sec 0 251 MBytes [ 4] 5.00-6.00 sec 184 MBytes 1.55 Gbits/sec 0 251 MBytes [ 4] 6.00-7.00 sec 180 MBytes 1.51 Gbits/sec 0 251 MBytes [ 4] 7.00-8.00 sec 190 MBytes 1.59 Gbits/sec 0 251 MBytes [ 4] 8.00-9.00 sec 189 MBytes 1.59 Gbits/sec 0 251 MBytes [ 4] 9.00-10.00 sec 192 MBytes 1.61 Gbits/sec 0 251 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 1.81 GBytes 1.55 Gbits/sec 0 sender [ 4] 0.00-10.00 sec 1.81 GBytes 1.55 Gbits/sec receiverand after disabling pf
#pfctl -d [ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 1.06 GBytes 9.12 Gbits/sec 0 247 MBytes [ 4] 1.00-2.00 sec 1.09 GBytes 9.38 Gbits/sec 0 247 MBytes [ 4] 2.00-3.00 sec 1.09 GBytes 9.38 Gbits/sec 0 247 MBytes [ 4] 3.00-4.00 sec 1.09 GBytes 9.38 Gbits/sec 0 247 MBytes [ 4] 4.00-5.00 sec 1.09 GBytes 9.38 Gbits/sec 0 247 MBytes [ 4] 5.00-6.00 sec 1.09 GBytes 9.38 Gbits/sec 0 247 MBytes [ 4] 6.00-7.00 sec 733 MBytes 6.15 Gbits/sec 22 -1812469760.00 Bytes [ 4] 7.00-8.00 sec 660 MBytes 5.54 Gbits/sec 0 -1602799360.00 Bytes [ 4] 8.00-9.00 sec 610 MBytes 5.12 Gbits/sec 0 -1405709184.00 Bytes [ 4] 9.00-10.00 sec 908 MBytes 7.61 Gbits/sec 0 -1261036608.00 Bytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 9.36 GBytes 8.04 Gbits/sec 22 sender [ 4] 0.00-10.00 sec 9.36 GBytes 8.04 Gbits/sec receiver -
I changed from an MTU of 1500 to an MTU of 9000
With pf enabled
[ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 808 MBytes 6.78 Gbits/sec 0 -1880960188.00 Bytes [ 4] 1.00-2.00 sec 864 MBytes 7.25 Gbits/sec 0 -1880960188.00 Bytes [ 4] 2.00-3.00 sec 898 MBytes 7.54 Gbits/sec 0 -1880960188.00 Bytes [ 4] 3.00-4.00 sec 873 MBytes 7.32 Gbits/sec 0 -1880960188.00 Bytes [ 4] 4.00-5.00 sec 869 MBytes 7.28 Gbits/sec 0 -1880960188.00 Bytes [ 4] 5.00-6.00 sec 885 MBytes 7.42 Gbits/sec 0 -1880960188.00 Bytes [ 4] 6.00-7.00 sec 843 MBytes 7.08 Gbits/sec 0 -1880960188.00 Bytes [ 4] 7.00-8.00 sec 879 MBytes 7.37 Gbits/sec 0 -1880960188.00 Bytes [ 4] 8.00-9.00 sec 844 MBytes 7.08 Gbits/sec 0 -1880960188.00 Bytes [ 4] 9.00-10.00 sec 871 MBytes 7.31 Gbits/sec 0 -1880960188.00 Bytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 8.43 GBytes 7.24 Gbits/sec 0 sender [ 4] 0.00-10.00 sec 8.43 GBytes 7.24 Gbits/sec receiverWith pf disabled
[ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 1.10 GBytes 9.45 Gbits/sec 0 -1880960188.00 Bytes [ 4] 1.00-2.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes [ 4] 2.00-3.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes [ 4] 3.00-4.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes [ 4] 4.00-5.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes [ 4] 5.00-6.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes [ 4] 6.00-7.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes [ 4] 7.00-8.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes [ 4] 8.00-9.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes [ 4] 9.00-10.00 sec 1.15 GBytes 9.86 Gbits/sec 0 -1880960188.00 Bytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 11.4 GBytes 9.82 Gbits/sec 0 sender [ 4] 0.00-10.00 sec 11.4 GBytes 9.82 Gbits/sec receiver -
Hi trmee,
Can flow control be disabled on the switch and your test host, too
-
Hi,
just read your post again. I can see that with pf disabled you achieve the desired speed.
In that Case it looks like the problem might indeed be with your specific setup.Do you have pfSense support ?
I imagine that pfSense support team could look at diagnostic data and drill down to find the bottleneck.
The fact that you get better speed with higher MTU means pfSense has to handle less data packages per time.The 2758 is an 8 core Atom, but I do not know what the expected throughput ought to be with that CPU. Of course it all depends on what the FW is doing (packages, NAT ?, SNORT? etc).