Like many web browsers, in order to maximize speed of operation, Anvisit uses cache and only recalculates its data when you ask it to display a logfile with a different name or with different options from those used in the last calculation.

If the contents of a logfile have changed, but Anvisit displays the old results instead of recalculating, you can click the "Refresh" button to force Anvisit to display the new data.