Ceph RADOS benchmarks replica impacts
shan
Some figures from a RADOS bench.
The test maintained an IO concurrency of 1. Basically, we sent IOs one by one.
| Block Size | Concurrency | Replica Count | Bandwidth |
|---|---|---|---|
| 1048576 | 1 | 1 | 72.668 |
| 1048576 | 1 | 2 | 74.945 |
| 1048576 | 1 | 3 | 61.796 |
| 1048576 | 1 | 4 | 54.241 |
| 131072 | 1 | 1 | 29.733 |
| 131072 | 1 | 2 | 29.876 |
| 131072 | 1 | 3 | 24.674 |
| 131072 | 1 | 4 | 22.402 |
| 4096 | 1 | 1 | 1.737 |
| 4096 | 1 | 2 | 1.691 |
| 4096 | 1 | 3 | 1.663 |
| 4096 | 1 | 4 | 1.687 |