SysUsage 5.3 Description:
SysUsage is a system monitoring and alarm reporting tool. The project can generate historical graph views of CPU, memory, IO, network and disk usage, and much more. Once you have correctly installed and configured SysUsage the best way to run it is by croni job. As it is very fast you can set running time each minute. This is the default interval used in the graph report tool sysusagegraph. So I recommand you to do so or to modify this script to match you interval.