40G network performance on LX2160A-RDB

[Kassany]

Having performed some network performance tests with iperf3, it can be seen that the maximum connection capacity is not reached.

UDP

[  5]   0.00-1.00   sec   673 MBytes  5.65 Gbits/sec  524771  
[  5]   1.00-2.00   sec   678 MBytes  5.69 Gbits/sec  528683  
[  5]   2.00-3.00   sec   677 MBytes  5.68 Gbits/sec  527809  
[  5]   3.00-4.00   sec   690 MBytes  5.79 Gbits/sec  537840  
[  5]   4.00-5.00   sec   699 MBytes  5.87 Gbits/sec  545084  
[  5]   5.00-6.00   sec   695 MBytes  5.83 Gbits/sec  542207  
[  5]   6.00-7.00   sec   680 MBytes  5.70 Gbits/sec  529956  
[  5]   7.00-8.00   sec   665 MBytes  5.58 Gbits/sec  518615  
[  5]   8.00-9.00   sec   653 MBytes  5.47 Gbits/sec  508780  
[  5]   9.00-10.00  sec   641 MBytes  5.38 Gbits/sec  499949  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Jitter    Lost/Total Datagrams
[  5]   0.00-10.00  sec  6.59 GBytes  5.66 Gbits/sec  0.000 ms  0/5263694 (0%)  sender
[  5]   0.00-10.64  sec  38.1 MBytes  30.0 Mbits/sec  0.242 ms  5233880/5263562 (99%)  receiver

TCP 

 ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  1.18 MBytes  9.93 Mbits/sec    0    403 KBytes       
[  5]   1.00-2.00   sec  3.88 MBytes  32.5 Mbits/sec  141    465 KBytes       
[  5]   2.00-3.00   sec  4.75 MBytes  39.8 Mbits/sec    0    520 KBytes       
[  5]   3.00-4.00   sec  5.25 MBytes  44.0 Mbits/sec    1    389 KBytes       
[  5]   4.00-5.00   sec  3.75 MBytes  31.5 Mbits/sec    1    298 KBytes       
[  5]   5.00-6.00   sec  2.88 MBytes  24.1 Mbits/sec    0    328 KBytes       
[  5]   6.00-7.00   sec  3.00 MBytes  25.2 Mbits/sec    0    345 KBytes       
[  5]   7.00-8.00   sec  3.25 MBytes  27.3 Mbits/sec    0    355 KBytes       
[  5]   8.00-9.00   sec  3.38 MBytes  28.3 Mbits/sec    0    357 KBytes       
[  5]   9.00-10.00  sec  3.62 MBytes  30.4 Mbits/sec    0    357 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  34.9 MBytes  29.3 Mbits/sec  143             sender
[  5]   0.00-10.19  sec  34.1 MBytes  28.0 Mbits/sec                  receiver

Some reconfigurations of the LK were made according to the recommendations mentioned by @yipingwang in another similar thread[1].

[yipingwang]

I got similar iperf performance result as the following with LSDK 21.08 default software environment and two lx2160ardb boards connecting together.  Is your user case termination traffic instead of forwarding?

root@localhost:/# iperf -c 100.1.1.64 -P 16 -t 30
------------------------------------------------------------
Client connecting to 100.1.1.64, TCP port 5001
TCP window size: 442 KByte (default)
------------------------------------------------------------
[ 4] local 100.1.1.65 port 44980 connected with 100.1.1.64 port 5001
[ 5] local 100.1.1.65 port 44982 connected with 100.1.1.64 port 5001
[ 3] local 100.1.1.65 port 44978 connected with 100.1.1.64 port 5001
[ 6] local 100.1.1.65 port 44984 connected with 100.1.1.64 port 5001
[ 7] local 100.1.1.65 port 44986 connected with 100.1.1.64 port 5001
[ 8] local 100.1.1.65 port 44988 connected with 100.1.1.64 port 5001
[ 12] local 100.1.1.65 port 44996 connected with 100.1.1.64 port 5001
[ 9] local 100.1.1.65 port 44990 connected with 100.1.1.64 port 5001
[ 10] local 100.1.1.65 port 44992 connected with 100.1.1.64 port 5001
[ 11] local 100.1.1.65 port 44994 connected with 100.1.1.64 port 5001
[ 13] local 100.1.1.65 port 44998 connected with 100.1.1.64 port 5001
[ 14] local 100.1.1.65 port 45000 connected with 100.1.1.64 port 5001
[ 15] local 100.1.1.65 port 45002 connected with 100.1.1.64 port 5001
[ 16] local 100.1.1.65 port 45004 connected with 100.1.1.64 port 5001
[ 17] local 100.1.1.65 port 45006 connected with 100.1.1.64 port 5001
[ 18] local 100.1.1.65 port 45008 connected with 100.1.1.64 port 5001
[ ID] Interval Transfer Bandwidth
[ 7] 0.0-30.0 sec 1.29 GBytes 369 Mbits/sec
[ 12] 0.0-30.0 sec 1.26 GBytes 362 Mbits/sec
[ 11] 0.0-30.0 sec 1.21 GBytes 346 Mbits/sec
[ 14] 0.0-30.0 sec 1.24 GBytes 355 Mbits/sec
[ 16] 0.0-30.0 sec 1.27 GBytes 364 Mbits/sec
[ 4] 0.0-30.0 sec 1.23 GBytes 352 Mbits/sec
[ 5] 0.0-30.0 sec 1.27 GBytes 362 Mbits/sec
[ 9] 0.0-30.0 sec 1.24 GBytes 356 Mbits/sec
[ 13] 0.0-30.0 sec 1.28 GBytes 365 Mbits/sec
[ 15] 0.0-30.0 sec 1.25 GBytes 357 Mbits/sec
[ 3] 0.0-30.1 sec 1.25 GBytes 356 Mbits/sec
[ 6] 0.0-30.0 sec 1.31 GBytes 376 Mbits/sec
[ 10] 0.0-30.1 sec 1.28 GBytes 365 Mbits/sec
[ 17] 0.0-30.0 sec 1.23 GBytes 353 Mbits/sec
[ 18] 0.0-30.0 sec 1.24 GBytes 354 Mbits/sec
[ 8] 0.0-30.1 sec 1.28 GBytes 366 Mbits/sec
[SUM] 0.0-30.1 sec 20.1 GBytes 5.75 Gbits/sec

root@localhost:/# iperf -c 100.1.1.64 -P 16 -t 30 -u -b 40G
------------------------------------------------------------
Client connecting to 100.1.1.64, UDP port 5001
Sending 1470 byte datagrams, IPG target: 0.27 us (kalman adjust)
UDP buffer size: 208 KByte (default)
------------------------------------------------------------
[ 3] local 100.1.1.65 port 47092 connected with 100.1.1.64 port 5001
[ 4] local 100.1.1.65 port 51398 connected with 100.1.1.64 port 5001
[ 5] local 100.1.1.65 port 51049 connected with 100.1.1.64 port 5001
[ 6] local 100.1.1.65 port 43814 connected with 100.1.1.64 port 5001
[ 7] local 100.1.1.65 port 45999 connected with 100.1.1.64 port 5001
[ 8] local 100.1.1.65 port 57700 connected with 100.1.1.64 port 5001
[ 9] local 100.1.1.65 port 60702 connected with 100.1.1.64 port 5001
[ 10] local 100.1.1.65 port 43959 connected with 100.1.1.64 port 5001
[ 11] local 100.1.1.65 port 39367 connected with 100.1.1.64 port 5001
[ 12] local 100.1.1.65 port 52498 connected with 100.1.1.64 port 5001
[ 13] local 100.1.1.65 port 46112 connected with 100.1.1.64 port 5001
[ 14] local 100.1.1.65 port 48562 connected with 100.1.1.64 port 5001
[ 15] local 100.1.1.65 port 33950 connected with 100.1.1.64 port 5001
[ 16] local 100.1.1.65 port 37260 connected with 100.1.1.64 port 5001
[ 17] local 100.1.1.65 port 35469 connected with 100.1.1.64 port 5001
[ 18] local 100.1.1.65 port 32931 connected with 100.1.1.64 port 5001
[ ID] Interval Transfer Bandwidth
[ 5] 0.0-30.2 sec 275 MBytes 76.3 Mbits/sec
[ 5] Sent 196141 datagrams
[ 5] Server Report:
[ 5] 0.0-30.2 sec 192 KBytes 51.9 Kbits/sec 11.167 ms 3101/ 0 (inf%)
[ 10] 0.0-30.2 sec 277 MBytes 77.0 Mbits/sec
[ 10] Sent 197856 datagrams
[ 12] 0.0-30.2 sec 278 MBytes 77.1 Mbits/sec
[ 12] Sent 198121 datagrams
[ 14] 0.0-30.2 sec 276 MBytes 76.6 Mbits/sec
[ 14] Sent 196964 datagrams
[ 12] Server Report:
[ 12] 0.0-30.2 sec 193 KBytes 52.4 Kbits/sec 14.995 ms 3719/ 0 (inf%)
[ 10] Server Report:
[ 10] 0.0-30.2 sec 193 KBytes 52.4 Kbits/sec 20.850 ms 2843/ 0 (inf%)
[ 14] Server Report:
[ 14] 0.0-30.2 sec 192 KBytes 52.1 Kbits/sec 6.310 ms 7829/ 0 (inf%)
[ 6] 0.0-30.2 sec 279 MBytes 77.3 Mbits/sec
[ 6] Sent 198680 datagrams
[ 7] 0.0-30.2 sec 279 MBytes 77.3 Mbits/sec
[ 7] Sent 198676 datagrams
[ 8] 0.0-30.2 sec 275 MBytes 76.2 Mbits/sec
[ 8] Sent 195864 datagrams
[ 16] 0.0-30.2 sec 272 MBytes 75.5 Mbits/sec
[ 16] Sent 194226 datagrams
[ 7] Server Report:
[ 7] 0.0-30.2 sec 194 KBytes 52.6 Kbits/sec 14.559 ms 2173/ 0 (inf%)
[ 8] Server Report:
[ 8] 0.0-30.2 sec 191 KBytes 51.8 Kbits/sec 12.627 ms 831/ 0 (inf%)
[ 6] Server Report:
[ 6] 0.0-30.2 sec 194 KBytes 52.6 Kbits/sec 14.019 ms 8185/ 0 (inf%)
[ 16] Server Report:
[ 16] 0.0-30.2 sec 190 KBytes 51.4 Kbits/sec 0.001 ms 4134/ 0 (inf%)
[ 3] 0.0-30.2 sec 275 MBytes 76.4 Mbits/sec
[ 3] Sent 196386 datagrams
[ 13] 0.0-30.2 sec 273 MBytes 75.8 Mbits/sec
[ 13] Sent 194996 datagrams
[ 17] 0.0-30.2 sec 274 MBytes 75.9 Mbits/sec
[ 17] Sent 195257 datagrams
[ 13] Server Report:
[ 13] 0.0-30.2 sec 190 KBytes 51.6 Kbits/sec 9.668 ms 7045/ 0 (inf%)
[ 3] Server Report:
[ 3] 0.0-30.2 sec 192 KBytes 52.0 Kbits/sec 6.817 ms 2735/ 0 (inf%)
[ 17] Server Report:
[ 17] 0.0-30.2 sec 191 KBytes 51.7 Kbits/sec 0.446 ms 9778/ 0 (inf%)
[ 11] 0.0-30.2 sec 277 MBytes 76.7 Mbits/sec
[ 11] Sent 197250 datagrams
[ 15] 0.0-30.2 sec 275 MBytes 76.3 Mbits/sec
[ 15] Sent 196217 datagrams
[ 18] 0.0-30.2 sec 274 MBytes 76.0 Mbits/sec
[ 18] Sent 195509 datagrams
[ 18] Server Report:
[ 18] 0.0-30.2 sec 191 KBytes 51.7 Kbits/sec 3.367 ms 6324/ 0 (inf%)
[ 11] Server Report:
[ 11] 0.0-30.2 sec 193 KBytes 52.2 Kbits/sec 7.802 ms 4433/ 0 (inf%)
[ 15] Server Report:
[ 15] 0.0-30.2 sec 192 KBytes 51.9 Kbits/sec 3.930 ms 2006/ 0 (inf%)
[ 4] 0.0-30.2 sec 277 MBytes 76.8 Mbits/sec
[ 4] Sent 197401 datagrams
[ 9] 0.0-30.2 sec 279 MBytes 77.3 Mbits/sec
[ 9] Sent 198661 datagrams
[SUM] 0.0-30.2 sec 4.31 GBytes 1.22 Gbits/sec
[SUM] Sent 3148205 datagrams

[Kassany]

Hi @yipingwang. Appreciate the feedback!

My work is with terminating traffic and not forwarding. However, I would like to know if it is possible to get the 40G on the QSFP port?

[yipingwang]

Please specify "-P 8", please refer to the following iperf result provided by the testing team.

[yipingwang]

This is the result of netperf, the result is about 35.6Gbps.

[Kassany]

Thanks again @yipingwang, I have found a slight confusion of understanding about iperf3 and iperf2 frustrating the results.
Based on your tests with netperf and iperf2, the results are similar and expected.

[yipingwang · Accepted solution]

You could use DPDK.

Please refer to dpdk ipsecgw performance.

	LSDK20.12 kernel 5.4
name	Framesize	Throughput(Kpps)	Throughput(Mbps)
dpdk_ipsecgw_caam_offload_50g_16c_perf	82	23,953	19,546
	408	13,967	47,825
	1,442	4,275	50,000