On 2012-2-2 8:28 , Borzenkov, Andrey wrote:
I am not aware offhand of any other tool that would show NFS latency, unfortunately.
There's "stats show volume:*:avg_latency" on the filer itself, for example (and several other latency counters, both under 'volume' and under 'nfsv3', see "stats list counters nfsv3" and "stats list counters volume").
Of course, that ignores any network latency to the clients, but it might still be a useful thing to measure. The same values are also available via the API, but not via SNMP.