When will nmon collect data like “topas -C”?
It may not be obvious but topas and topas -C are two completely different programs hidden in one binary. The cross partition stats involved communicating with each LPAR and the HMC to get the data unlike the local stats that just calls the local kernel API. The cross partition version of nmon has already been written it is called Ganglia please see http://www.ibm.com/collaboration/wiki/display/WikiPtype/ganglia for more details. OK, it is an excellent Open Source tool and nothing to do with nmon but it is has all the right stats, many brilliant features, is very simple to implement and has very little impact on performance. There is no need to duplicate this work and it also supports lots of operating systems, the output is via a website and the data is in graph form and it keeps historic data – so this is better then text output on a dumb screen and only for root users.
