OpenOnload Downloads


OpenOnload and EnterpriseOnload releases are now available from the Solarflare support site, which offers a secure interface. You can also download OpenOnload packages below.

The latest release is openonload-201805, released on 2018/05/08. This is a feature release which adds support for X2 adapters, TCPDirect enhancements and extended scalable filters and clustering features. Please read the release notes and change log.

Older releases

Browse previous public OpenOnload releases here.


The following documents are all available from

Benchmarking tools


sfnettest is a suite of tools developed by Solarflare for probing network performance on Linux, Solaris, FreeBSD and MacOSX.

Download sfnettest-1.5.0.tgz.


sysjitter is a tool that measures the jitter experienced by user-level threads running on each CPU core of a computer. Such jitter may be caused by interrupts, OS threads, system management interrupts or other processes on the system.

Download sysjitter-1.4.tgz.