Hello there... I need to implement something similar, and before start, i did think to look here first. And that is the good in being part of such community. ;-) As there is only one comment for the Ben's question, and a good one, i think if we can work in a prototype together, and maybe create a general framework for that. And publish the result FMA/Dtrace scripts, and the processing scripts. I'm thinking in use orca to do the plotting, so, even the necessary steps for that. Ben did not talk about specifically what is the dtrace script he wants to implement in "daemon" mode. So, i will explain my case, and ask Ben if he can do the same, so we can implement together. I want the following informations for each ZFS dataset (FS or VOL), regarding NFS operations, for all NFS servers:
1 - Total requests (reads and writes); 2 - Latency for each operation; 3 - Total Sync operations (Zil); 4 - And the spa_sync informations too. Would be nice to see if for "some reason" we have more requests that we can handle... but i don't think that is possible (in the end we would have all done with big latency times, i guess). Anyway... Obviously, we do not need to get for example *all* the NFS operations, but we do need something representative. Maybe aggregate in memory, and persist on disk from time to time. I don't know if there is some kind of "timer" in dtrace to activate and deactivate probes. ps.: But a real time monitor(like analytics) would be very nice! ;-) That's it, i wait your comments, and thanks a lot for your time! Leal [ http://www.eall.com.br ] -- This message posted from opensolaris.org _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org
