Join us November 13-15, 2018 in

Berlin, Germany

The next Open Infrastructure Summit is going to be in Denver, April 29-May 1. Check out the agenda.

Event Details

Please note: All times listed below are in Central Time Zone

How to double* the performance of vSwitch-based deployments

vSwitch solutions, such as DPDK-accelerated Open vSwitch, promise to provide much of the performance of SR-IOV with increased flexibility and decreased operational cost. However, while the switch may be virtual, the hardware that the vSwitch and VMs are running on is not. Unlike SR-IOV, NUMA affinity was not accounted for when instances using vSwitch-backed networking. This could result in a loss of up to 50% of network performance.

This changes in Rocky. With the completion of the NUMA-aware vSwitch feature, nova now has the ability to schedule and create you instances in a manner that will deliver the maximum possible performance from your vSwitch-powered network. Come learn how we did it and how you can start using this new functionality in your own deployments.

What can I expect to learn?
  • How NUMA can adversely affect the performance of your vSwitch-based deployment
  • What features nova provides to eliminate this performance penalty and how you can use this functionality in your own deployments
  • The work ongoing to continue improving performance in this area and related areas
Tuesday, November 13, 11:50am-12:30pm (10:50am - 11:30am UTC)
Difficulty Level: Advanced
Red Hat
I'm a software developer working in the OpenStack team at Red Hat. I predominantly work with Nova, where I'm a core reviewer, though I've also been known to tinker with projects all over the OpenStack ecosystem. I previously worked at Intel, where I contributed to OpenStack (Nova and Neutron also) and Open vSwitch (led internal testing and validation efforts). FULL PROFILE