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50 lines
2.5 KiB
Markdown
50 lines
2.5 KiB
Markdown
## Physical machines
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GCE n1-highcpu-2 machine type
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- 1x dedicated local SSD mounted under /var/lib/etcd
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- 1x dedicated slow disk for the OS
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- 1.8 GB memory
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- 2x CPUs
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- etcd version 2.1.0
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## etcd Cluster
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3 etcd members, each runs on a single machine
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## Testing
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Bootstrap another machine and use benchmark tool [boom](https://github.com/rakyll/boom) to send requests to each etcd member.
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## Performance
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### reading one single key
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| key size in bytes | number of clients | target etcd server | read QPS | 90th Percentile Latency (ms) |
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|-------------------|-------------------|--------------------|----------|---------------|
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| 64 | 1 | leader only | 1534 | 0.7 |
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| 64 | 64 | leader only | 10125 | 9.1 |
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| 64 | 256 | leader only | 13892 | 27.1 |
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| 256 | 1 | leader only | 1530 | 0.8 |
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| 256 | 64 | leader only | 10106 | 10.1 |
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| 256 | 256 | leader only | 14667 | 27.0 |
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| 64 | 64 | all servers | 24200 | 3.9 |
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| 64 | 256 | all servers | 33300 | 11.8 |
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| 256 | 64 | all servers | 24800 | 3.9 |
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| 256 | 256 | all servers | 33000 | 11.5 |
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### writing one single key
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| key size in bytes | number of clients | target etcd server | write QPS | 90th Percentile Latency (ms) |
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|-------------------|-------------------|--------------------|-----------|---------------|
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| 64 | 1 | leader only | 60 | 21.4 |
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| 64 | 64 | leader only | 1742 | 46.8 |
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| 64 | 256 | leader only | 3982 | 90.5 |
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| 256 | 1 | leader only | 58 | 20.3 |
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| 256 | 64 | leader only | 1770 | 47.8 |
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| 256 | 256 | leader only | 4157 | 105.3 |
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| 64 | 64 | all servers | 1028 | 123.4 |
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| 64 | 256 | all servers | 3260 | 123.8 |
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| 256 | 64 | all servers | 1033 | 121.5 |
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| 256 | 256 | all servers | 3061 | 119.3 |
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