Shenango

Shenango is a system that enables servers in datacenters to simultaneously provide low tail latency and high CPU efficiency, by rapidly reallocating cores across applications, at timescales as small as every 5 microseconds.

How to build

0. Make sure you are on FreeBSD 13.

1. Install the latest DPDK, compiler and gmake on FreeBSD

pkg install dpdk gcc10 gmake

2. Make a symbolic link of GCC

ln -s /usr/local/bin/gcc10 /usr/local/bin/gcc

3. Use GMAKE

gmake

To enable debugging, build with gmake DEBUG=1.

4. Install Rust and build a synthetic client-server application.

curl https://sh.rustup.rs -sSf | sh
rustup default nightly

cd apps/synthetic
cargo clean
cargo update
cargo build --release

4. Run the synthetic application with a client and server. The client sends requests to the server, which performs a specified amount of fake work (e.g., computing square roots for 10us), before responding.

On the server:

sudo ./iokerneld
./apps/synthetic/target/release/synthetic 192.168.1.3:5000 --config server.config --mode spawner-server

On the client:

sudo ./iokerneld
./apps/synthetic/target/release/synthetic 192.168.1.3:5000 --config client.config --mode runtime-client

Supported Platforms

This code has been tested most thoroughly on Ubuntu 18.04, with kernel 4.15.0. It has been tested with Intel 82599ES 10 Gbits/s NICs and Mellanox ConnectX-3 Pro 10 Gbits/s NICs. If you use Mellanox NICs, you should install the Mellanox OFED as described in DPDK's documentation. If you use Intel NICs, you should insert the IGB UIO module and bind your NIC interface to it (e.g., using the script ./dpdk/usertools/dpdk-setup.sh).