2010/11/29
Profiling a web application for performance bottlenecks requires a balance between focusing on the minutia and taking a step back and looking at the bigger picture. Since nearly all software projects deal with time constraints, a team must wisely choose where to spend its efforts tweaking an application to yield the best experience for its end users.
However, before diving into the code looking for optimizations, there are a few key things that one should understand about the performance profile of an application: Critical Path, Outliers, Variances, and Environment.
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With these principles in mind, I wrote an extension to the GWT client-side RPC mechanism to capture data that will assist in making better informed decisions about which services need optimization.
