Patroni

Benchmarking etcd v3

Performance measures for 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

Use etcd v3 benchmark tool.

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.

Last modified June 14, 2021: Renaming content/en/next folder to content/en/v3.5. Updating redirects, links, and config as needed. (#363) (138926b)