Upshot provides several views, the primary view illustrating on what operations each process spent its time. This can be very useful in determining if processes are spending an inordinate amount of time in certain communication operations, for example.
Additional views are available for displaying details on a particular operation.
Upshot provides several sample logfiles which you can select, or you can select your own logfiles. Upshot will briefly display a bar illustrating the percentage of the file that has been loaded and will then open a window displaying process operations. To drag the canvas around, second-button click and drag the display or use the scroll bars. The beginning and ending ranges of the viewed portion can be adjusted to look closer at a certain range. More than one logfile, or multiple copies of the same logfile can be open at a time.