46 lines
2.3 KiB
Markdown
46 lines
2.3 KiB
Markdown
# Performance
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## Provision Time
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Provisioning times vary based on the operating system and platform. Sampling the time to create (apply) and destroy clusters with 1 controller and 2 workers shows (roughly) what to expect.
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| Platform | Apply | Destroy |
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|---------------|-------|---------|
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| AWS | 6 min | 5 min |
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| Azure | 7 min | 7 min |
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| Bare-Metal | 10-15 min | NA |
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| Digital Ocean | 3 min 30 sec | 20 sec |
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| Google Cloud | 7 min | 6 min |
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Notes:
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* SOA TTL and NXDOMAIN caching can have a large impact on provision time
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* Platforms with auto-scaling take more time to provision (AWS, Azure, Google)
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* Bare-metal POST times and network bandwidth will affect provision times
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## Network Performance
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Network performance varies based on the platform and CNI plugin. `iperf` was used to measure the bandwidth between different hosts and different pods. Host-to-host shows typical bandwidth between host machines. Pod-to-pod shows the bandwidth between two `iperf` containers.
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| Platform / Plugin | Theory | Host to Host | Pod to Pod |
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|----------------------------|-------:|-------------:|-------------:|
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| AWS (flannel) | Varies | 976 Mb/s | 900-999 Mb/s |
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| AWS (calico, MTU 1480) | Varies | 976 Mb/s | 100-350 Mb/s |
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| AWS (calico, MTU 8981) | Varies | 976 Mb/s | 900-999 Mb/s |
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| Azure (flannel) | Varies | 749 Mb/s | 680 Mb/s |
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| Bare-Metal (flannel) | 1 Gb/s | ~940 Mb/s | 903 Mb/s |
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| Bare-Metal (calico) | 1 Gb/s | ~940 Mb/s | 931 Mb/s |
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| Bare-Metal (flannel, bond) | 3 Gb/s | 2.3 Gb/s | 1.17 Gb/s |
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| Bare-Metal (calico, bond) | 3 Gb/s | 2.3 Gb/s | 1.17 Gb/s |
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| Digital Ocean | 2 Gb/s | 1.97 Gb/s | 1.64 Gb/s |
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| Google Cloud (flannel) | 2 Gb/s | 1.94 Gb/s | 1.76 Gb/s |
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| Google Cloud (calico) | 2 Gb/s | 1.94 Gb/s | 1.81 Gb/s |
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Notes:
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* Calico and Flannel have comparable performance. Platform and configuration differences dominate.
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* AWS and Azure node bandwidth (i.e. upper bound) depends greatly on machine type
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* Only [certain AWS EC2 instance types](http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/network_mtu.html#jumbo_frame_instances) allow jumbo frames. This is why the default MTU on AWS must be 1480.
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* Neither CNI provider seems to be able to leverage bonded NICs well (bare-metal)
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