OpenStack — Benchmarks
Scope
Performance characteristics, scaling limits, and resource consumption for OpenStack.
| Operation |
Time |
Notes |
| VM boot (local) |
10-30s |
Depends on image size |
| VM boot (Ceph) |
15-45s |
RBD clone is fast |
| Live migration |
5-60s |
Depends on memory size |
| Snapshot |
10-120s |
Copy-on-write with Ceph |
Scaling Benchmarks
| Dimension |
Tested |
Notes |
| Compute nodes |
500+ |
Production deployments |
| VMs per compute |
100+ |
Depends on host resources |
| Total VMs |
50,000+ |
Large cloud deployments |
| API requests/sec |
1,000+ |
Keystone auth bottleneck |
Neutron (Networking)
| Feature |
OVS Performance |
OVN Performance |
| Port creation |
5-10s |
2-5s |
| Network create |
1-3s |
1-2s |
| Floating IP |
2-5s |
1-3s |
| East-west throughput |
8-9 Gbps |
9-10 Gbps |