If you want to stop JazzMon, it will retain all the data it has collected to date and just won't do the "analyze" step for you by default. You can always do that from the command line.

But if you just want to analyze the data early, you can do that without stopping JazzMon. Under JazzMon 1.4, the default is to "analyze in place" so from a different command line shell you just run the "analyze" command whenever you want and it will analyze the data it's collected to date; then you can use the Excel macro to view it.

If you are using an earlier version or have disabled the analyze-in-place feature you'll just have to do a "gather" and an "analyze" step from the alternate command line window.