On your site you advise users to tune there virtual memory settings by specifying a minimum and a maximum value.
I have found this to be in error. If you specify a maximum, the maximum virtual memory size is your internal (real) memory + your maximum specified.
Swapping only takes place when there is a shortage of real memory. By specifying a maximum you limit the amount of virtual memory available and you can get error messages saying there is no more memory available while there is still real memory avaiable.
You should change the maximum to the maximum (rest) space available on your diskdrive. You still have the advantage of a continuous swapfile but no virtual memory limit.