in the README specified by wmsupermon a example for wmsupermonrc is provided, however using it's cpu usage will always output 0.
cpu1 1954 0 399 1262997 40 0 10 0 0 0
i also found that if i explicitly only request for \4 which would be 1262997, causes a stack smashing error. the math that calculates the usage could be the cause.