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48 lines
1.4 KiB
Markdown
48 lines
1.4 KiB
Markdown
**This is the documentation for etcd2 releases. Read [etcd3 doc][v3-docs] for etcd3 releases.**
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[v3-docs]: ../../docs.md#documentation
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## 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 2.2.0
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## etcd Cluster
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1 etcd member running in v3 demo mode
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## Testing
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Use [etcd v3 benchmark tool][etcd-v3-benchmark].
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## Performance
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### reading one single key
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| key size in bytes | number of clients | read QPS | 90th Percentile Latency (ms) |
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|-------------------|-------------------|----------|---------------|
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| 256 | 1 | 2716 | 0.4 |
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| 256 | 64 | 16623 | 6.1 |
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| 256 | 256 | 16622 | 21.7 |
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The performance is nearly the same as the one with empty server handler.
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### reading one single key after putting
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| key size in bytes | number of clients | read QPS | 90th Percentile Latency (ms) |
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|-------------------|-------------------|----------|---------------|
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| 256 | 1 | 2269 | 0.5 |
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| 256 | 64 | 13582 | 8.6 |
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| 256 | 256 | 13262 | 47.5 |
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The performance with empty server handler is not affected by one put. So the
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performance downgrade should be caused by storage package.
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[etcd-v3-benchmark]: ../../../tools/benchmark/
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