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Topics - KwicksSense

#1
Hello

I have very bad performance running iperf3 to my DEC740 or via the DEC740.
I achieve only about 700 Mbit and also have a ton of retransmissions:
ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   835 MBytes   700 Mbits/sec  45900             sender


What tuneables should I set for my DEC740?
Hardware offloading in Interface settings are all disabled.

Thanks!
#2
Hello together

I am running a DEC740 and went to 10G via fiber for my internal network.
Running with MTU 1500 I get about 1.4 Gbit in both directions between my OPNsense and my Server.
Running with MTU 9000 I get almost 10 Gbit but only in one direction? On the other direction I get 0 Mbit.

Here are my iperf results.
First is my server as iperf host and second is my OPNsense as iperf host
root@Host:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201 (test #1)
-----------------------------------------------------------
Accepted connection from 10.10.20.1, port 64465
[  5] local 10.10.20.10 port 5201 connected to 10.10.20.1 port 3916
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  1.09 GBytes  9.35 Gbits/sec                 
[  5]   1.00-2.00   sec  1.06 GBytes  9.13 Gbits/sec                 
[  5]   2.00-3.00   sec  1.12 GBytes  9.63 Gbits/sec                 
[  5]   3.00-4.00   sec  1.07 GBytes  9.20 Gbits/sec                 
[  5]   4.00-5.00   sec  1.12 GBytes  9.66 Gbits/sec                 
[  5]   5.00-6.00   sec  1.12 GBytes  9.60 Gbits/sec                 
[  5]   6.00-7.00   sec  1.12 GBytes  9.64 Gbits/sec                 
[  5]   7.00-8.00   sec  1.11 GBytes  9.50 Gbits/sec                 
[  5]   8.00-9.00   sec  1.12 GBytes  9.61 Gbits/sec                 
[  5]   9.00-10.00  sec  1.02 GBytes  8.74 Gbits/sec                 
[  5]  10.00-10.00  sec   944 KBytes  9.24 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.00  sec  11.0 GBytes  9.41 Gbits/sec                  receiver
-----------------------------------------------------------
Server listening on 5201 (test #2)
-----------------------------------------------------------
^Ciperf3: interrupt - the server has terminated

root@Host:~# iperf3 -c 10.10.1.1
Connecting to host 10.10.1.1, port 5201
[  5] local 10.10.20.10 port 41716 connected to 10.10.1.1 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec   489 KBytes  4.01 Mbits/sec    3   8.74 KBytes       
[  5]   1.00-2.00   sec  0.00 Bytes  0.00 bits/sec    1   8.74 KBytes       
[  5]   2.00-3.00   sec  0.00 Bytes  0.00 bits/sec    0   8.74 KBytes       
[  5]   3.00-4.00   sec  0.00 Bytes  0.00 bits/sec    1   8.74 KBytes       
[  5]   4.00-5.00   sec  0.00 Bytes  0.00 bits/sec    0   8.74 KBytes       
[  5]   5.00-6.00   sec  0.00 Bytes  0.00 bits/sec    0   8.74 KBytes       
[  5]   6.00-7.00   sec  0.00 Bytes  0.00 bits/sec    1   8.74 KBytes       
[  5]   7.00-8.00   sec  0.00 Bytes  0.00 bits/sec    0   8.74 KBytes       
[  5]   8.00-9.00   sec  0.00 Bytes  0.00 bits/sec    0   8.74 KBytes       
[  5]   9.00-10.00  sec  0.00 Bytes  0.00 bits/sec    0   8.74 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   489 KBytes   401 Kbits/sec    6             sender
[  5]   0.00-10.00  sec  0.00 Bytes  0.00 bits/sec                  receiver

iperf Done.


But my network seems working fine.
What am I doing wrong here?

Thanks for any hint.
#3
Hardware and Performance / Best settings for DEC740
August 14, 2022, 10:05:35 PM
Hi together

I am new to OPNsense but really like what I see so far  :)
I bought a DEC740 recently and are in the setup process currently.

How do I get information about what my hardware is capable und what the best settings are?

For example:

  • Can I use Hardware acceleration under System → Settings → Miscellaneous ?
  • Should I enable the 2 GB swap file?
  • What are the best settings under Firewall → Settings → Advanced → Miscellaneous? What to pick for Firewall optimization an max. Table entries?
  • Am I able to enable Hardware CRC in the Interface Settings? What about Hardware TSO and LRO
Are there any other useful settings I should choose for my device?

I am not able to find this out from the specs of the DEC740 and not from the documentation. So maybe one of you can help e out?

Thank you very much :)
Kwicks