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dpdk-mg-lpm

LPM implementation using multi-group classifiers.

Build prerequirements

  • Download and Install Intel DPDK version at least 2.0.1:
$ wget http://fast.dpdk.org/rel/dpdk-2.1.0.tar.xz
$ sudo ./dpdk-2.1.0/tools/setup.sh

Test cases description

Function setup_mg_lpm() constain all testing code snippets to reproduce experiments for LPM v4 and v6 cases.

Experiment lifecycle:

  • Choose how many ipv4 or ipv6 groups lookup you want to do time measuring. Possible values are 20 groups for IPv4 case and 8 groups for IPv6 case. The prefix lenghts are stored in variables DEPTH_TEST.
  • Go to setup_mg_lpm() and comment not needed code for your experiments: creating LPM group data structures, populating them with predefined FIBs, calling looks up, measure tsc cycles, and printing results.
  • Compile using make util. NOTE: DPDK must be already setup up.
  • Run build/ipv6fib binary.
  • The binary stops immediatly after test code execution. The results are in the terminal: tsc and time to do pseudo-parallel lookup.

Hint: if you want to measure a baseline such as the number of cycles to do single LPM lookup with long prefix = 40 bits, just choose the group number = 1, and set DEPTH_TEST = 40.