Environment

Make sure Vagrant and Virtualbox is setup for the platform of your choice. If you are behind a proxy, install vagrant-proxyconf plugin and export the http(s) proxy, no_proxy variables. The Vagrantfile will pick it up and provision the Ubuntu box accordingly.

git clone https://github.com/krsna1729/dpdk-hash.git
# Alternately, download and extract zip https://github.com/krsna1729/dpdk-hash/archive/master.zip
cd dpdk-hash

vagrant up
vagrant ssh                 # or PuTTY login vagrant/vagrant 127.0.0.1:2222

Use the setup-apt.sh as a guide to setup the env on your own Ubuntu box if you want to try without Vagrant.

Basic Fwd

Simple RX TX app. TX pcaps will be of the same size as RX. All are transmitted.

cd dpdk

ll -h /vagrant/pcaps/*.pcap # should see 2 PCAP
ll -h *.pcap                # should see no PCAP files
make -C examples/skeleton/

sudo ./examples/skeleton/build/basicfwd --no-pci \
--vdev=net_pcap0,rx_pcap=/vagrant/pcaps/64K_dst0.pcap,tx_pcap=b_output0.pcap \
--vdev=net_pcap1,rx_pcap=/vagrant/pcaps/64K_dst1.pcap,tx_pcap=b_output1.pcap

# Press Ctrl+C to quit after 2s
ll -h *.pcap                # should see 2 new PCAP files b_output0 b_output1

Whitelist Fwd

Here we whitelist half the IPs (even) in the app. The TX pcaps must be half the size of RX.

git apply /vagrant/patches/skeleton_whitelist_ips.patch
make -C examples/skeleton/

sudo ./examples/skeleton/build/basicfwd --no-pci \
--vdev=net_pcap0,rx_pcap=/vagrant/pcaps/64K_dst0.pcap,tx_pcap=a_output0.pcap \
--vdev=net_pcap1,rx_pcap=/vagrant/pcaps/64K_dst1.pcap,tx_pcap=a_output1.pcap

# Press Ctrl+C to quit after 2s
ll -h *.pcap                # 2 new PCAP files a_output0 a_output1 half the size

Benchmark Lib

Try out the different patches test_<>.patch and see the effect on table occupancy .

git checkout lib/librte_hash/rte_cuckoo_hash.c
git apply /vagrant/patches/test_<>.patch
make -j > /dev/null

# Benchmark
sudo ./build/app/test --no-pci -- -i
hash_autotest

Appendix

Snapshot of SW versions

vagrant: 1.9.3
vagrant-proxyconf (1.5.2)
VitualBox: 5.1.14
Host: Win8.1