Version v3.3 of This version of etcd is no longer supported. For the latest version, please see the latest stable version. For the latest stable documentation, see v3.5.
Benchmarking etcd v3
Physical machines
GCE n1-highcpu-2 machine type
- 1x dedicated local SSD mounted under /var/lib/etcd
- 1x dedicated slow disk for the OS
- 1.8 GB memory
- 2x CPUs
- etcd version 2.2.0
etcd Cluster
1 etcd member running in v3 demo mode
Testing
Performance
reading one single key
| key size in bytes | number of clients | read QPS | 90th Percentile Latency (ms) |
|---|---|---|---|
| 256 | 1 | 2716 | 0.4 |
| 256 | 64 | 16623 | 6.1 |
| 256 | 256 | 16622 | 21.7 |
The performance is nearly the same as the one with empty server handler.
reading one single key after putting
| key size in bytes | number of clients | read QPS | 90th Percentile Latency (ms) |
|---|---|---|---|
| 256 | 1 | 2269 | 0.5 |
| 256 | 64 | 13582 | 8.6 |
| 256 | 256 | 13262 | 47.5 |
The performance with empty server handler is not affected by one put. So the performance downgrade should be caused by storage package.
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