[pve-devel] ceph firefly in pve repos

[Dietmar Maurer]

So I try to summarize the results you posted for on ceph-devel:

Intel s3500 rdb 4k write: 5200 IOPS
Intel s3500 rdb 4k read: 21634 IOPS
Crucial m550 rbd 4k write: 3081 IOPS
Crucial m550 rbd 4k read: 20151 IOPS

Read performance is about the same, but write is twice as fast with intel.

Considering the price, you can buy twice as many crucial disk for same money. This would lead to a cluster
with same write performance, but much better read?


> results of fio on rbd with kernel patch
> 
> 
> 
> fio rbd crucial m550 1 osd 0.85 (osd_enable_op_tracker true or false, same
> result):
> ---------------------------
> bw=12327KB/s, iops=3081