The complexity of interconnected devices requires constant real-time monitoring, as failure of one part can have catastrophic consequences for the entire system. Computer-information monitoring tools enable us to always be one step ahead of potential problems that may occur in a monitored network environment, whether it is a human-caused configuration or simply an element has failed or stopped working. Not only can they report potential problems, but they can also solve the problem itself. For example, if an element needs increased resources at a given time, the tool itself can recognize it and automatically increase the resource needs of that element. By setting up a monitoring system in a virtual environment, the results can be seen and through their analysis will bring an optimal solution when it comes to what agent to use. This paper presents analysis of how network monitoring agent is responding in cases when there is increased use of shared resources. Knowing this can help in choosing what agent should be used in any given environment, and with that more resources will be saved. This leads to better utilization of resources which is an important in mid-size and big setup of computer monitoring systems.