Application performance play an important role when it comes to combining of data centers. Virtualization makes the data to be centralized and makes it cost saving for the business firms. With cloud computing techniques the firms can be benefited by choosing form the public and private cloud and Infrastructure-as-a service to Application-as-a service.
Companies follow best practices to make the APM as the right planning tool of the data center stages or cloud migration. The companies spend dollars for migrations to provide good assurance that the end users get fast response times for their application transactions. Users want interactions to be at a speed of a lightening, no matter where they are located.
The end-users who are most affected are the ones that are in the same facility as the old data center. Because of very high bandwidth and almost-zero latency of the LANs they are used to immediate response times for years. In contrast, the latencies across a WAN or the Internet could be in the range of tens of milliseconds to hundreds of milliseconds; there could be choke points along the path with low bandwidth.