Measuring the application's performance

To monitor performance, users look at the application itself. Various tools exist for monitoring application performance. However in this recipe we will use VMware vFabric AppInsight.

Tuning an enterprise application for performance is challenging because, to begin with, the host running the virtual machines in which these applications run might be dealing with workloads of varying characteristics. As a result, the root cause of a performance problem might end up being a combination of problems that are CPU related, memory related, networking related, and storage related.

As a system administrator, you measure performance in terms of resource utilization. From the perspective of the user, the best measurement of performance is the response time of the application itself. In addition to resource utilization metrics, there are two performance measurements that can help an application owner determine whether or not an application's performance is acceptable...