216. Benchmark the performance of single core forwarding with FVL25G/NNT10G

216.1. Prerequisites

1. Hardware:

   1.1) nic_single_core_perf test for FVL25G: two dual port FVL25G nics,

   all installed on the same socket, pick one port per nic

   1.2) nic_single_core_perf test for NNT10G: four 82599 nics,

   all installed on the same socket, pick one port per nic

2. Software:

   dpdk: git clone http://dpdk.org/git/dpdk
   scapy: http://www.secdev.org/projects/scapy/
   dts (next branch): git clone http://dpdk.org/git/tools/dts,
                      then "git checkout next"
   Trex code: http://trex-tgn.cisco.com/trex/release/v2.26.tar.gz
              (to be run in stateless Layer 2 mode, see section in
               Getting Started Guide for more details)
   python-prettytable:
       apt install python-prettytable (for ubuntu os)
       or dnf install python-prettytable (for fedora os).
   

3. Connect all the selected nic ports to traffic generator(IXIA,TREX, PKTGEN) ports(TG ports):

   2 TG 25g ports for FVL25G ports
   4 TG 10g ports for 4 NNT10G ports
   

216.2. Test Case : Single Core Performance Measurement

1. Bind tested ports to igb_uio

2. Start testpmd:

   ./x86_64-native-linuxapp-gcc/app/testpmd -c 0x6 -n 4 -- -i \
       --portmask=0xf  --txd=128 --rxd=128
      testpmd> start
   

3. Configure traffic generator to send traffic

   configure one below stream for each TG port

   dst mac: peer nic port mac src ip : random dst ip : random packet length : 64 byte

4. check throughput and compare it with the expected value.

5. for NNT10G, repeat above step 1-4 for txd=rxd=512,2048 separately. for FVL25G nic, just test txd=rxd=512,2048 following above steps 1-4.

6. Result tables for different NICs:

   FVL25G:

   Frame Size	TXD/RXD	Throughput	Rate	Expected Throughput
   64	512	xxxxxx Mpps	xxx %	xxx Mpps
   64	2048	xxxxxx Mpps	xxx %	xxx Mpps

   NNT10G:

   Frame Size	TXD/RXD	Throughput	Rate	Expected Throughput
   64	128	xxxxxx Mpps	xxx %	xxx Mpps
   64	512	xxxxxx Mpps	xxx %	xxx Mpps
   64	2048	xxxxxx Mpps	xxx %	xxx Mpps

Note

: The values for the expected throughput may vary due to different

platform and OS, and traffic generator, please correct threshold values accordingly. (the above expected values for FVL 25G and NNT10G were got from the combination of Purly,Ubuntu 16.04, and traffic generator IXIA)

Case will raise failure if actual throughputs have more than 1Mpps gap from expected ones.