[ceph-users] Re: rbd perf image iostat - rbdmap write latency

On Mon, Apr 27, 2020 at 7:38 AM Marc Roos <M.Roos@f1-outsourcing.eu> wrote:

I guess this is not good for ssd (samsung sm863)? Or do I need to devide 14.8 by 40?

The 14.8 ms number is the average latency coming from the OSDs, so no need to divide the number by anything. What is the size of your writes? At 40 writes/sec against an SSD-backed cluster, I can only hope they are large IOs.

rbd perf image iostat

NAME WR RD WR_BYTES RD_BYTES WR_LAT RD_LAT rbd.ssd/vps-test 40/s 0/s 5.0 MiB/s 0 B/s 14.84 ms 0.00 ns _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io

-- Jason