Hi Matthias, Prometheus exporter already have all this metrics, you can setup Grafana panels as you want Also, the apply latency in a metric for a pre-bluestore, i.e. filestore For Bluestore apply latency is the same as commit latency, you can check this via `ceph osd perf` command k
On 25 Mar 2023, at 00:02, Matthias Ferdinand <mf+ml.ceph@mfedv.net> wrote:
Hi,
I would like to understand how the per-OSD data from "ceph osd perf" (i.e. apply_latency, commit_latency) is generated. So far I couldn't find documentation on this. "ceph osd perf" output is nice for a quick glimpse, but is not very well suited for graphing. Output values are from the most recent 5s-averages apparently.
With "ceph daemon osd.X perf dump" OTOH, you get quite a lot of latency metrics, while it is just not obvious to me how they aggregate into apply_latency and commit_latency. Or some comparably easy read latency metric (something that is missing completely in "ceph osd perf").
Can somebody shed some light on this?
Regards Matthias _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io