When users complain that an application is slow or when customers abandon online sessions without buying anything, the cause of the problem is often elusive and mysterious. You know that the network connections are tight and the servers are humming, but the problem persists.
Troubleshooting efforts degenerate into finger-pointing. One vendor suggests spending money on faster computers. Someone invariably says the software needs to be completely rewritten. Another vendor sagely recommends faster storage devices. Yet another says you need more bandwidth.
What's a network executive to do?
The answer: Try an Application Performance Monitoring (APM) tool. An APM tool monitors a multi-tier application's performance and availability to show exactly how much time each application component takes to respond to a user's requests. The information helps you decide what network or computing environment changes to make to solve the problem.