Version v3.2 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 v2.1.0
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 2.1.0 alpha
etcd Cluster
3 etcd members, each runs on a single machine
Testing
Bootstrap another machine and use the hey HTTP benchmark tool to send requests to each etcd member. Check the benchmark hacking guide for detailed instructions.
Performance
reading one single key
| key size in bytes | number of clients | target etcd server | read QPS | 90th Percentile Latency (ms) |
|---|---|---|---|---|
| 64 | 1 | leader only | 1534 | 0.7 |
| 64 | 64 | leader only | 10125 | 9.1 |
| 64 | 256 | leader only | 13892 | 27.1 |
| 256 | 1 | leader only | 1530 | 0.8 |
| 256 | 64 | leader only | 10106 | 10.1 |
| 256 | 256 | leader only | 14667 | 27.0 |
| 64 | 64 | all servers | 24200 | 3.9 |
| 64 | 256 | all servers | 33300 | 11.8 |
| 256 | 64 | all servers | 24800 | 3.9 |
| 256 | 256 | all servers | 33000 | 11.5 |
writing one single key
| key size in bytes | number of clients | target etcd server | write QPS | 90th Percentile Latency (ms) |
|---|---|---|---|---|
| 64 | 1 | leader only | 60 | 21.4 |
| 64 | 64 | leader only | 1742 | 46.8 |
| 64 | 256 | leader only | 3982 | 90.5 |
| 256 | 1 | leader only | 58 | 20.3 |
| 256 | 64 | leader only | 1770 | 47.8 |
| 256 | 256 | leader only | 4157 | 105.3 |
| 64 | 64 | all servers | 1028 | 123.4 |
| 64 | 256 | all servers | 3260 | 123.8 |
| 256 | 64 | all servers | 1033 | 121.5 |
| 256 | 256 | all servers | 3061 | 119.3 |
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