a.) What I would like to see is cutting down the number of columns that are on display when we do
$vtl view ai::ri -hotspot-address -mn
b.) It should be used extensively as a performance monitoring tool. $ vtl query -c sampling
On executing this we get to see all the events that we can calculate. There should be a more detailed document mentioning what all events can be clubbed together so that we can reduce the number of runs of vtl and get the maximum possible numbers.
I have spent a lot of my time investigating these events and their usage.
To reduce columns in vtl view ai::ri -hotspot-address -mn This is an understandable inconvenience but the vtl output is best seen by redirecting the output to a file and by writing some scripts to extract the columns of interest. The windows version of vtl (not available in sampling viewer command-line for Linux) also provides switch "-show-events-as" which helps reduce number of event columns. It also lets you specify a column delimiter so that you can import this data into excel etc. for better viewing.