Ceph » mgr » Dashboard

Feedback from Ben England:

MDS Performance shows absolute numbers, not rates. It should be showing reads/writes per sec and client requests/sec.   

Additionally it should also display a graph of total files and total directories. This would allow people to determine average file size and average files/directory, important statistics in determining metadata density vs data.

...

Finally, I'd like to see a graph showing metadata cache hit rates.   Without metadata cache hits, additional reads are required for each Ceph I/O operation.