One of the benefits of FD.io VPP, is high performance on relatively low-power computing, this performance is based on the following features:
- A high-performance user-space network stack designed for commodity hardware.
- L2, L3 and L4 features and encapsulations.
- Optimized packet interfaces supporting a multitude of use cases.
- An integrated vhost-user backend for high speed VM-to-VM connectivity.
- An integrated memif container backend for high speed Container-to-Container connectivity.
- An integrated vhost based interface to punt packets to the Linux Kernel.
- The same optimized code-paths run execute on the host, and inside VMs and Linux containers.
- Leverages best-of-breed open source driver technology: DPDK.
- Tested at scale; linear core scaling, tested with millions of flows and mac addresses.
These features have been designed to take full advantage of common micro-processor optimization techniques, such as:
- Reducing cache and TLS misses by processing packets in vectors.
- Realizing IPC gains with vector instructions such as: SSE, AVX and NEON.
- Eliminating mode switching, context switches and blocking, to always be doing useful work.
- Cache-lined aliged buffers for cache and memory efficiency.
These are some of the packet throughput graphs for FD.io VPP 18.04 from the CSIT 18.04 benchmarking report.
.. toctree::
current_l2_throughput.rst
current_ndr_throughput.rst
current_ipv4_throughput.rst
current_ipv6_throughput.rst
These are some of the trending packet throughput graphs from the CSIT trending dashboard. Please note that, performance in the trending graphs will change on a nightly basis in line with the software development cycle.
.. toctree::
trending_l2_throughput.rst
trending_ipv4_throughput.rst
trending_ipv6_throughput.rst
These are FD.io Continuous System Integration and Testing (CSIT)'s documentation links.