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docker overlay network performance comparison - bare metal

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qiwa
Beginner

My prior 2 posts did some tests on docker overlay network performance at both intel driver and girt-io driver. This post will share the test result on bare metal.


Test options:

  • Direct host to host
  • VM to VM. Hypervisor – virtual box using virt-io. I have trouble to keystroke using virt-view, seems like a gtk bug, thus no KVM test yet.
  • Container to container through host network.
  • Host to VM through port mapping
  • Contiv vlan mode
  • Flannel host-gw mode
  • Flannel vxlan mode
  • Flannel udp mode
  • Weave fast data path with MTU 8950, referred by http://www.weave.works/weave-docker-networking-performance-fast-data-path/

My observation:

  • Contiv vlan mode still has the best performance among all overlay network.
  • Contiv (8.8Gbps) shows 10% performance gain comparing with flannel host-gw mode (7.7Gbps)
  • Weave’s performance is worse than others
  • Virtualbox performance is worse than container.


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