lib/console/vmstat_utils.pm

read_memory_cpu

 read_memory_cpu("/tmp/file.log")
 Input :  File which contains vmstat output.
 Returns a list with two array references which maps to amount of idle memory and CPU usage from the vmstat output log file.

average

 average([1,2,4,5])
 Input:  Array of numbers.
 Returns the average of numbers.