Seastar uses the Data Plane Development Kit to drive NIC hardware directly. This provides an enormous performance boost.
To enable DPDK, specify -DSeastar_DPDK=ON
to ./cooking.sh
, and --dpdk-pmd
as a
run-time parameter. This will use the DPDK package provided as a git submodule with the
seastar sources.
To use your own self-compiled DPDK package, follow this procedure:
- Setup host to compile DPDK:
- Ubuntu
sudo apt-get install -y build-essential linux-image-extra-$(uname -r)
- Ubuntu
- Prepare a DPDK SDK:
- Download the latest DPDK release:
wget http://dpdk.org/browse/dpdk/snapshot/dpdk-2.0.0.tar.gz
- Untar it.
- Edit config/common_linuxapp: set CONFIG_RTE_MBUF_REFCNT_ATOMIC and CONFIG_RTE_LIBRTE_KNI to 'n'.
- Start the tools/setup.sh script as root.
- Compile a linuxapp target (option 9).
- Install IGB_UIO module (option 12).
- Bind some physical port to IGB_UIO (option 18).
- Configure hugepage mappings (option 15/16).
- Download the latest DPDK release:
- Modify the CMake cache (
CMakeCache.txt
) to inform CMake of the location of the installed DPDK SDK.